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Finding the Fourth Proportional to 6,142.70, 9,214.04 and 1,525.70

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Solution

The fourth proportional to 6,142.70, 9,214.04 and 1,525.70 is: 2,288.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,142.70 : 9,214.04 = 1,525.70 : x
  2. Step 2: Convert to fraction form
    6,142.70/9,214.04 = 1,525.70/x
  3. Step 3: Cross multiply
    6,142.70x = 9,214.04 × 1,525.70
  4. Step 4: Simplify right side
    6,142.70x = 14,057,807.13
  5. Step 5: Solve for x
    x = 14,057,807.13/6,142.70
  6. Step 6: Final answer
    x = 2,288.54

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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.