Home / 1,677.41-2,315.48-1,258.97

Finding the Fourth Proportional to 1,677.41, 2,315.48 and 1,258.97

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Solution

The fourth proportional to 1,677.41, 2,315.48 and 1,258.97 is: 1,737.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,677.41 : 2,315.48 = 1,258.97 : x
  2. Step 2: Convert to fraction form
    1,677.41/2,315.48 = 1,258.97/x
  3. Step 3: Cross multiply
    1,677.41x = 2,315.48 × 1,258.97
  4. Step 4: Simplify right side
    1,677.41x = 2,915,121.52
  5. Step 5: Solve for x
    x = 2,915,121.52/1,677.41
  6. Step 6: Final answer
    x = 1,737.87

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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.