Home / 2,442.78-3,366.63-1,778.58

Finding the Fourth Proportional to 2,442.78, 3,366.63 and 1,778.58

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Solution

The fourth proportional to 2,442.78, 3,366.63 and 1,778.58 is: 2,451.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,442.78 : 3,366.63 = 1,778.58 : x
  2. Step 2: Convert to fraction form
    2,442.78/3,366.63 = 1,778.58/x
  3. Step 3: Cross multiply
    2,442.78x = 3,366.63 × 1,778.58
  4. Step 4: Simplify right side
    2,442.78x = 5,987,820.79
  5. Step 5: Solve for x
    x = 5,987,820.79/2,442.78
  6. Step 6: Final answer
    x = 2,451.23

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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.