Home / 5,520.15-8,265.78-4,640.63

Finding the Fourth Proportional to 5,520.15, 8,265.78 and 4,640.63

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Solution

The fourth proportional to 5,520.15, 8,265.78 and 4,640.63 is: 6,948.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,520.15 : 8,265.78 = 4,640.63 : x
  2. Step 2: Convert to fraction form
    5,520.15/8,265.78 = 4,640.63/x
  3. Step 3: Cross multiply
    5,520.15x = 8,265.78 × 4,640.63
  4. Step 4: Simplify right side
    5,520.15x = 38,358,385.31
  5. Step 5: Solve for x
    x = 38,358,385.31/5,520.15
  6. Step 6: Final answer
    x = 6,948.79

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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.