Home / 3,904.76-5,386.38-2,331.92

Finding the Fourth Proportional to 3,904.76, 5,386.38 and 2,331.92

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Solution

The fourth proportional to 3,904.76, 5,386.38 and 2,331.92 is: 3,216.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,904.76 : 5,386.38 = 2,331.92 : x
  2. Step 2: Convert to fraction form
    3,904.76/5,386.38 = 2,331.92/x
  3. Step 3: Cross multiply
    3,904.76x = 5,386.38 × 2,331.92
  4. Step 4: Simplify right side
    3,904.76x = 12,560,607.25
  5. Step 5: Solve for x
    x = 12,560,607.25/3,904.76
  6. Step 6: Final answer
    x = 3,216.74

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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.