Home / 5,590.42-8,384.19-2,125.78

Finding the Fourth Proportional to 5,590.42, 8,384.19 and 2,125.78

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Solution

The fourth proportional to 5,590.42, 8,384.19 and 2,125.78 is: 3,188.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,590.42 : 8,384.19 = 2,125.78 : x
  2. Step 2: Convert to fraction form
    5,590.42/8,384.19 = 2,125.78/x
  3. Step 3: Cross multiply
    5,590.42x = 8,384.19 × 2,125.78
  4. Step 4: Simplify right side
    5,590.42x = 17,822,943.42
  5. Step 5: Solve for x
    x = 17,822,943.42/5,590.42
  6. Step 6: Final answer
    x = 3,188.12

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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.