Home / 5,242.20-7,236.45-3,476.40

Finding the Fourth Proportional to 5,242.20, 7,236.45 and 3,476.40

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Solution

The fourth proportional to 5,242.20, 7,236.45 and 3,476.40 is: 4,798.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,242.20 : 7,236.45 = 3,476.40 : x
  2. Step 2: Convert to fraction form
    5,242.20/7,236.45 = 3,476.40/x
  3. Step 3: Cross multiply
    5,242.20x = 7,236.45 × 3,476.40
  4. Step 4: Simplify right side
    5,242.20x = 25,156,794.78
  5. Step 5: Solve for x
    x = 25,156,794.78/5,242.20
  6. Step 6: Final answer
    x = 4,798.90

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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.