Home / 4,378.20-6,041.76-2,489.76

Finding the Fourth Proportional to 4,378.20, 6,041.76 and 2,489.76

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Solution

The fourth proportional to 4,378.20, 6,041.76 and 2,489.76 is: 3,435.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,378.20 : 6,041.76 = 2,489.76 : x
  2. Step 2: Convert to fraction form
    4,378.20/6,041.76 = 2,489.76/x
  3. Step 3: Cross multiply
    4,378.20x = 6,041.76 × 2,489.76
  4. Step 4: Simplify right side
    4,378.20x = 15,042,532.38
  5. Step 5: Solve for x
    x = 15,042,532.38/4,378.20
  6. Step 6: Final answer
    x = 3,435.78

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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.