Home / 5,612.24-8,420.52-2,148.68

Finding the Fourth Proportional to 5,612.24, 8,420.52 and 2,148.68

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Solution

The fourth proportional to 5,612.24, 8,420.52 and 2,148.68 is: 3,223.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,612.24 : 8,420.52 = 2,148.68 : x
  2. Step 2: Convert to fraction form
    5,612.24/8,420.52 = 2,148.68/x
  3. Step 3: Cross multiply
    5,612.24x = 8,420.52 × 2,148.68
  4. Step 4: Simplify right side
    5,612.24x = 18,093,002.91
  5. Step 5: Solve for x
    x = 18,093,002.91/5,612.24
  6. Step 6: Final answer
    x = 3,223.85

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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.