Home / 2,440.78-3,366.18-1,556.92

Finding the Fourth Proportional to 2,440.78, 3,366.18 and 1,556.92

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Solution

The fourth proportional to 2,440.78, 3,366.18 and 1,556.92 is: 2,147.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,440.78 : 3,366.18 = 1,556.92 : x
  2. Step 2: Convert to fraction form
    2,440.78/3,366.18 = 1,556.92/x
  3. Step 3: Cross multiply
    2,440.78x = 3,366.18 × 1,556.92
  4. Step 4: Simplify right side
    2,440.78x = 5,240,872.97
  5. Step 5: Solve for x
    x = 5,240,872.97/2,440.78
  6. Step 6: Final answer
    x = 2,147.21

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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.