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Finding the Fourth Proportional to 6,139.04, 9,161.04 and 5,482.72

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Solution

The fourth proportional to 6,139.04, 9,161.04 and 5,482.72 is: 8,181.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,139.04 : 9,161.04 = 5,482.72 : x
  2. Step 2: Convert to fraction form
    6,139.04/9,161.04 = 5,482.72/x
  3. Step 3: Cross multiply
    6,139.04x = 9,161.04 × 5,482.72
  4. Step 4: Simplify right side
    6,139.04x = 50,227,417.23
  5. Step 5: Solve for x
    x = 50,227,417.23/6,139.04
  6. Step 6: Final answer
    x = 8,181.64

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.