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Finding the Fourth Proportional to 1,607.91, 2,218.20 and 1,010.04

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Solution

The fourth proportional to 1,607.91, 2,218.20 and 1,010.04 is: 1,393.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,607.91 : 2,218.20 = 1,010.04 : x
  2. Step 2: Convert to fraction form
    1,607.91/2,218.20 = 1,010.04/x
  3. Step 3: Cross multiply
    1,607.91x = 2,218.20 × 1,010.04
  4. Step 4: Simplify right side
    1,607.91x = 2,240,470.73
  5. Step 5: Solve for x
    x = 2,240,470.73/1,607.91
  6. Step 6: Final answer
    x = 1,393.41

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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.