Home / 4,187.71-5,778.38-2,418.97

Finding the Fourth Proportional to 4,187.71, 5,778.38 and 2,418.97

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Solution

The fourth proportional to 4,187.71, 5,778.38 and 2,418.97 is: 3,337.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,187.71 : 5,778.38 = 2,418.97 : x
  2. Step 2: Convert to fraction form
    4,187.71/5,778.38 = 2,418.97/x
  3. Step 3: Cross multiply
    4,187.71x = 5,778.38 × 2,418.97
  4. Step 4: Simplify right side
    4,187.71x = 13,977,715.77
  5. Step 5: Solve for x
    x = 13,977,715.77/4,187.71
  6. Step 6: Final answer
    x = 3,337.80

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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.