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Finding the Fourth Proportional to 1,795.71, 2,691.29 and 807.47

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Solution

The fourth proportional to 1,795.71, 2,691.29 and 807.47 is: 1,210.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,795.71 : 2,691.29 = 807.47 : x
  2. Step 2: Convert to fraction form
    1,795.71/2,691.29 = 807.47/x
  3. Step 3: Cross multiply
    1,795.71x = 2,691.29 × 807.47
  4. Step 4: Simplify right side
    1,795.71x = 2,173,142.54
  5. Step 5: Solve for x
    x = 2,173,142.54/1,795.71
  6. Step 6: Final answer
    x = 1,210.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.