Home / 1,493.40-2,059.70-932.80

Finding the Fourth Proportional to 1,493.40, 2,059.70 and 932.80

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Solution

The fourth proportional to 1,493.40, 2,059.70 and 932.80 is: 1,286.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,493.40 : 2,059.70 = 932.80 : x
  2. Step 2: Convert to fraction form
    1,493.40/2,059.70 = 932.80/x
  3. Step 3: Cross multiply
    1,493.40x = 2,059.70 × 932.80
  4. Step 4: Simplify right side
    1,493.40x = 1,921,288.16
  5. Step 5: Solve for x
    x = 1,921,288.16/1,493.40
  6. Step 6: Final answer
    x = 1,286.52

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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.