Home / 5,488.10-8,232.15-5,220.80

Finding the Fourth Proportional to 5,488.10, 8,232.15 and 5,220.80

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Solution

The fourth proportional to 5,488.10, 8,232.15 and 5,220.80 is: 7,831.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,488.10 : 8,232.15 = 5,220.80 : x
  2. Step 2: Convert to fraction form
    5,488.10/8,232.15 = 5,220.80/x
  3. Step 3: Cross multiply
    5,488.10x = 8,232.15 × 5,220.80
  4. Step 4: Simplify right side
    5,488.10x = 42,978,408.72
  5. Step 5: Solve for x
    x = 42,978,408.72/5,488.10
  6. Step 6: Final answer
    x = 7,831.20

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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.