Home / 5,283.38-7,925.10-1,387.70

Finding the Fourth Proportional to 5,283.38, 7,925.10 and 1,387.70

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Solution

The fourth proportional to 5,283.38, 7,925.10 and 1,387.70 is: 2,081.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,283.38 : 7,925.10 = 1,387.70 : x
  2. Step 2: Convert to fraction form
    5,283.38/7,925.10 = 1,387.70/x
  3. Step 3: Cross multiply
    5,283.38x = 7,925.10 × 1,387.70
  4. Step 4: Simplify right side
    5,283.38x = 10,997,661.27
  5. Step 5: Solve for x
    x = 10,997,661.27/5,283.38
  6. Step 6: Final answer
    x = 2,081.56

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1.5x scale

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.