Home / 3,504.38-5,253.48-1,311.57

Finding the Fourth Proportional to 3,504.38, 5,253.48 and 1,311.57

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Solution

The fourth proportional to 3,504.38, 5,253.48 and 1,311.57 is: 1,966.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,504.38 : 5,253.48 = 1,311.57 : x
  2. Step 2: Convert to fraction form
    3,504.38/5,253.48 = 1,311.57/x
  3. Step 3: Cross multiply
    3,504.38x = 5,253.48 × 1,311.57
  4. Step 4: Simplify right side
    3,504.38x = 6,890,306.76
  5. Step 5: Solve for x
    x = 6,890,306.76/3,504.38
  6. Step 6: Final answer
    x = 1,966.20

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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.