Home / 5,587.20-8,380.98-2,812.35

Finding the Fourth Proportional to 5,587.20, 8,380.98 and 2,812.35

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Solution

The fourth proportional to 5,587.20, 8,380.98 and 2,812.35 is: 4,218.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,587.20 : 8,380.98 = 2,812.35 : x
  2. Step 2: Convert to fraction form
    5,587.20/8,380.98 = 2,812.35/x
  3. Step 3: Cross multiply
    5,587.20x = 8,380.98 × 2,812.35
  4. Step 4: Simplify right side
    5,587.20x = 23,570,193.14
  5. Step 5: Solve for x
    x = 23,570,193.14/5,587.20
  6. Step 6: Final answer
    x = 4,218.61

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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.