Home / 3,317.28-4,577.91-2,138.76

Finding the Fourth Proportional to 3,317.28, 4,577.91 and 2,138.76

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Solution

The fourth proportional to 3,317.28, 4,577.91 and 2,138.76 is: 2,951.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,317.28 : 4,577.91 = 2,138.76 : x
  2. Step 2: Convert to fraction form
    3,317.28/4,577.91 = 2,138.76/x
  3. Step 3: Cross multiply
    3,317.28x = 4,577.91 × 2,138.76
  4. Step 4: Simplify right side
    3,317.28x = 9,791,050.79
  5. Step 5: Solve for x
    x = 9,791,050.79/3,317.28
  6. Step 6: Final answer
    x = 2,951.53

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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.