Home / 3,542.30-5,313.65-1,077.20

Finding the Fourth Proportional to 3,542.30, 5,313.65 and 1,077.20

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Solution

The fourth proportional to 3,542.30, 5,313.65 and 1,077.20 is: 1,615.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,542.30 : 5,313.65 = 1,077.20 : x
  2. Step 2: Convert to fraction form
    3,542.30/5,313.65 = 1,077.20/x
  3. Step 3: Cross multiply
    3,542.30x = 5,313.65 × 1,077.20
  4. Step 4: Simplify right side
    3,542.30x = 5,723,863.78
  5. Step 5: Solve for x
    x = 5,723,863.78/3,542.30
  6. Step 6: Final answer
    x = 1,615.86

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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.