Home / 5,403.12-8,101.90-2,478.88

Finding the Fourth Proportional to 5,403.12, 8,101.90 and 2,478.88

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Solution

The fourth proportional to 5,403.12, 8,101.90 and 2,478.88 is: 3,717.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,403.12 : 8,101.90 = 2,478.88 : x
  2. Step 2: Convert to fraction form
    5,403.12/8,101.90 = 2,478.88/x
  3. Step 3: Cross multiply
    5,403.12x = 8,101.90 × 2,478.88
  4. Step 4: Simplify right side
    5,403.12x = 20,083,637.87
  5. Step 5: Solve for x
    x = 20,083,637.87/5,403.12
  6. Step 6: Final answer
    x = 3,717.04

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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.