Home / 2,456.85-3,387.86-1,897.41

Finding the Fourth Proportional to 2,456.85, 3,387.86 and 1,897.41

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Solution

The fourth proportional to 2,456.85, 3,387.86 and 1,897.41 is: 2,616.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,456.85 : 3,387.86 = 1,897.41 : x
  2. Step 2: Convert to fraction form
    2,456.85/3,387.86 = 1,897.41/x
  3. Step 3: Cross multiply
    2,456.85x = 3,387.86 × 1,897.41
  4. Step 4: Simplify right side
    2,456.85x = 6,428,149.96
  5. Step 5: Solve for x
    x = 6,428,149.96/2,456.85
  6. Step 6: Final answer
    x = 2,616.42

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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.