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Finding the Fourth Proportional to 4,687.47, 6,470.21 and 2,699.39

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Solution

The fourth proportional to 4,687.47, 6,470.21 and 2,699.39 is: 3,726.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,687.47 : 6,470.21 = 2,699.39 : x
  2. Step 2: Convert to fraction form
    4,687.47/6,470.21 = 2,699.39/x
  3. Step 3: Cross multiply
    4,687.47x = 6,470.21 × 2,699.39
  4. Step 4: Simplify right side
    4,687.47x = 17,465,643.10
  5. Step 5: Solve for x
    x = 17,465,643.10/4,687.47
  6. Step 6: Final answer
    x = 3,726.03

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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.