Home / 5,329.60-7,351.68-4,148.80

Finding the Fourth Proportional to 5,329.60, 7,351.68 and 4,148.80

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Solution

The fourth proportional to 5,329.60, 7,351.68 and 4,148.80 is: 5,722.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,329.60 : 7,351.68 = 4,148.80 : x
  2. Step 2: Convert to fraction form
    5,329.60/7,351.68 = 4,148.80/x
  3. Step 3: Cross multiply
    5,329.60x = 7,351.68 × 4,148.80
  4. Step 4: Simplify right side
    5,329.60x = 30,500,649.98
  5. Step 5: Solve for x
    x = 30,500,649.98/5,329.60
  6. Step 6: Final answer
    x = 5,722.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.