Home / 1,729.56-2,387.70-1,693.92

Finding the Fourth Proportional to 1,729.56, 2,387.70 and 1,693.92

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Solution

The fourth proportional to 1,729.56, 2,387.70 and 1,693.92 is: 2,338.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,729.56 : 2,387.70 = 1,693.92 : x
  2. Step 2: Convert to fraction form
    1,729.56/2,387.70 = 1,693.92/x
  3. Step 3: Cross multiply
    1,729.56x = 2,387.70 × 1,693.92
  4. Step 4: Simplify right side
    1,729.56x = 4,044,572.78
  5. Step 5: Solve for x
    x = 4,044,572.78/1,729.56
  6. Step 6: Final answer
    x = 2,338.50

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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.