Home / 5,618.57-8,432.71-2,158.25

Finding the Fourth Proportional to 5,618.57, 8,432.71 and 2,158.25

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Solution

The fourth proportional to 5,618.57, 8,432.71 and 2,158.25 is: 3,239.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,618.57 : 8,432.71 = 2,158.25 : x
  2. Step 2: Convert to fraction form
    5,618.57/8,432.71 = 2,158.25/x
  3. Step 3: Cross multiply
    5,618.57x = 8,432.71 × 2,158.25
  4. Step 4: Simplify right side
    5,618.57x = 18,199,848.80
  5. Step 5: Solve for x
    x = 18,199,848.80/5,618.57
  6. Step 6: Final answer
    x = 3,239.23

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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.