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Finding the Fourth Proportional to 7,853.04, 11,779.56 and 3,690.45

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Solution

The fourth proportional to 7,853.04, 11,779.56 and 3,690.45 is: 5,535.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,853.04 : 11,779.56 = 3,690.45 : x
  2. Step 2: Convert to fraction form
    7,853.04/11,779.56 = 3,690.45/x
  3. Step 3: Cross multiply
    7,853.04x = 11,779.56 × 3,690.45
  4. Step 4: Simplify right side
    7,853.04x = 43,471,877.20
  5. Step 5: Solve for x
    x = 43,471,877.20/7,853.04
  6. Step 6: Final answer
    x = 5,535.68

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.