Home / 5,402.80-8,104.20-4,491.55

Finding the Fourth Proportional to 5,402.80, 8,104.20 and 4,491.55

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Solution

The fourth proportional to 5,402.80, 8,104.20 and 4,491.55 is: 6,737.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,402.80 : 8,104.20 = 4,491.55 : x
  2. Step 2: Convert to fraction form
    5,402.80/8,104.20 = 4,491.55/x
  3. Step 3: Cross multiply
    5,402.80x = 8,104.20 × 4,491.55
  4. Step 4: Simplify right side
    5,402.80x = 36,400,419.51
  5. Step 5: Solve for x
    x = 36,400,419.51/5,402.80
  6. Step 6: Final answer
    x = 6,737.33

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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.