Home / 5,375.20-7,417.70-3,017.28

Finding the Fourth Proportional to 5,375.20, 7,417.70 and 3,017.28

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Solution

The fourth proportional to 5,375.20, 7,417.70 and 3,017.28 is: 4,163.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,375.20 : 7,417.70 = 3,017.28 : x
  2. Step 2: Convert to fraction form
    5,375.20/7,417.70 = 3,017.28/x
  3. Step 3: Cross multiply
    5,375.20x = 7,417.70 × 3,017.28
  4. Step 4: Simplify right side
    5,375.20x = 22,381,277.86
  5. Step 5: Solve for x
    x = 22,381,277.86/5,375.20
  6. Step 6: Final answer
    x = 4,163.80

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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.