Home / 4,242.20-6,363.30-3,615.80

Finding the Fourth Proportional to 4,242.20, 6,363.30 and 3,615.80

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Solution

The fourth proportional to 4,242.20, 6,363.30 and 3,615.80 is: 5,423.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,242.20 : 6,363.30 = 3,615.80 : x
  2. Step 2: Convert to fraction form
    4,242.20/6,363.30 = 3,615.80/x
  3. Step 3: Cross multiply
    4,242.20x = 6,363.30 × 3,615.80
  4. Step 4: Simplify right side
    4,242.20x = 23,008,420.14
  5. Step 5: Solve for x
    x = 23,008,420.14/4,242.20
  6. Step 6: Final answer
    x = 5,423.70

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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.