Home / 5,445.60-8,165.10-2,154.90

Finding the Fourth Proportional to 5,445.60, 8,165.10 and 2,154.90

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Solution

The fourth proportional to 5,445.60, 8,165.10 and 2,154.90 is: 3,231.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,445.60 : 8,165.10 = 2,154.90 : x
  2. Step 2: Convert to fraction form
    5,445.60/8,165.10 = 2,154.90/x
  3. Step 3: Cross multiply
    5,445.60x = 8,165.10 × 2,154.90
  4. Step 4: Simplify right side
    5,445.60x = 17,594,973.99
  5. Step 5: Solve for x
    x = 17,594,973.99/5,445.60
  6. Step 6: Final answer
    x = 3,231.04

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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.