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Finding the Fourth Proportional to 1,470.26, 2,029 and 807.14

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Solution

The fourth proportional to 1,470.26, 2,029 and 807.14 is: 1,113.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,470.26 : 2,029 = 807.14 : x
  2. Step 2: Convert to fraction form
    1,470.26/2,029 = 807.14/x
  3. Step 3: Cross multiply
    1,470.26x = 2,029 × 807.14
  4. Step 4: Simplify right side
    1,470.26x = 1,637,687.06
  5. Step 5: Solve for x
    x = 1,637,687.06/1,470.26
  6. Step 6: Final answer
    x = 1,113.88

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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.