Home / 5,854.96-8,781.04-2,155.20

Finding the Fourth Proportional to 5,854.96, 8,781.04 and 2,155.20

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Solution

The fourth proportional to 5,854.96, 8,781.04 and 2,155.20 is: 3,232.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,854.96 : 8,781.04 = 2,155.20 : x
  2. Step 2: Convert to fraction form
    5,854.96/8,781.04 = 2,155.20/x
  3. Step 3: Cross multiply
    5,854.96x = 8,781.04 × 2,155.20
  4. Step 4: Simplify right side
    5,854.96x = 18,924,897.41
  5. Step 5: Solve for x
    x = 18,924,897.41/5,854.96
  6. Step 6: Final answer
    x = 3,232.28

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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.