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Finding the Fourth Proportional to 5,805.28, 8,010.12 and 3,681.64

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Solution

The fourth proportional to 5,805.28, 8,010.12 and 3,681.64 is: 5,079.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,805.28 : 8,010.12 = 3,681.64 : x
  2. Step 2: Convert to fraction form
    5,805.28/8,010.12 = 3,681.64/x
  3. Step 3: Cross multiply
    5,805.28x = 8,010.12 × 3,681.64
  4. Step 4: Simplify right side
    5,805.28x = 29,490,378.20
  5. Step 5: Solve for x
    x = 29,490,378.20/5,805.28
  6. Step 6: Final answer
    x = 5,079.92

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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.