Home / 5,039.78-7,560.20-2,440.76

Finding the Fourth Proportional to 5,039.78, 7,560.20 and 2,440.76

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Solution

The fourth proportional to 5,039.78, 7,560.20 and 2,440.76 is: 3,661.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,039.78 : 7,560.20 = 2,440.76 : x
  2. Step 2: Convert to fraction form
    5,039.78/7,560.20 = 2,440.76/x
  3. Step 3: Cross multiply
    5,039.78x = 7,560.20 × 2,440.76
  4. Step 4: Simplify right side
    5,039.78x = 18,452,633.75
  5. Step 5: Solve for x
    x = 18,452,633.75/5,039.78
  6. Step 6: Final answer
    x = 3,661.40

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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.