Home / 5,440.78-7,508.40-2,956.78

Finding the Fourth Proportional to 5,440.78, 7,508.40 and 2,956.78

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Solution

The fourth proportional to 5,440.78, 7,508.40 and 2,956.78 is: 4,080.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,440.78 : 7,508.40 = 2,956.78 : x
  2. Step 2: Convert to fraction form
    5,440.78/7,508.40 = 2,956.78/x
  3. Step 3: Cross multiply
    5,440.78x = 7,508.40 × 2,956.78
  4. Step 4: Simplify right side
    5,440.78x = 22,200,686.95
  5. Step 5: Solve for x
    x = 22,200,686.95/5,440.78
  6. Step 6: Final answer
    x = 4,080.42

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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.