Home / 5,420.20-8,130.17-2,498.50

Finding the Fourth Proportional to 5,420.20, 8,130.17 and 2,498.50

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Solution

The fourth proportional to 5,420.20, 8,130.17 and 2,498.50 is: 3,747.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,420.20 : 8,130.17 = 2,498.50 : x
  2. Step 2: Convert to fraction form
    5,420.20/8,130.17 = 2,498.50/x
  3. Step 3: Cross multiply
    5,420.20x = 8,130.17 × 2,498.50
  4. Step 4: Simplify right side
    5,420.20x = 20,313,215.67
  5. Step 5: Solve for x
    x = 20,313,215.67/5,420.20
  6. Step 6: Final answer
    x = 3,747.69

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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.