Home / 3,542.20-5,313.30-2,915.80

Finding the Fourth Proportional to 3,542.20, 5,313.30 and 2,915.80

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Solution

The fourth proportional to 3,542.20, 5,313.30 and 2,915.80 is: 4,373.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,542.20 : 5,313.30 = 2,915.80 : x
  2. Step 2: Convert to fraction form
    3,542.20/5,313.30 = 2,915.80/x
  3. Step 3: Cross multiply
    3,542.20x = 5,313.30 × 2,915.80
  4. Step 4: Simplify right side
    3,542.20x = 15,492,520.14
  5. Step 5: Solve for x
    x = 15,492,520.14/3,542.20
  6. Step 6: Final answer
    x = 4,373.70

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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.