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Finding the Fourth Proportional to 1,470.47, 2,029.26 and 807.35

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Solution

The fourth proportional to 1,470.47, 2,029.26 and 807.35 is: 1,114.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,470.47 : 2,029.26 = 807.35 : x
  2. Step 2: Convert to fraction form
    1,470.47/2,029.26 = 807.35/x
  3. Step 3: Cross multiply
    1,470.47x = 2,029.26 × 807.35
  4. Step 4: Simplify right side
    1,470.47x = 1,638,323.06
  5. Step 5: Solve for x
    x = 1,638,323.06/1,470.47
  6. Step 6: Final answer
    x = 1,114.15

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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.