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Finding the Fourth Proportional to 6,139.88, 8,473.03 and 3,487.28

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Solution

The fourth proportional to 6,139.88, 8,473.03 and 3,487.28 is: 4,812.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,139.88 : 8,473.03 = 3,487.28 : x
  2. Step 2: Convert to fraction form
    6,139.88/8,473.03 = 3,487.28/x
  3. Step 3: Cross multiply
    6,139.88x = 8,473.03 × 3,487.28
  4. Step 4: Simplify right side
    6,139.88x = 29,547,806.88
  5. Step 5: Solve for x
    x = 29,547,806.88/6,139.88
  6. Step 6: Final answer
    x = 4,812.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.