Home / 3,087.92-4,261.20-1,761.68

Finding the Fourth Proportional to 3,087.92, 4,261.20 and 1,761.68

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Solution

The fourth proportional to 3,087.92, 4,261.20 and 1,761.68 is: 2,431.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,087.92 : 4,261.20 = 1,761.68 : x
  2. Step 2: Convert to fraction form
    3,087.92/4,261.20 = 1,761.68/x
  3. Step 3: Cross multiply
    3,087.92x = 4,261.20 × 1,761.68
  4. Step 4: Simplify right side
    3,087.92x = 7,506,870.82
  5. Step 5: Solve for x
    x = 7,506,870.82/3,087.92
  6. Step 6: Final answer
    x = 2,431.04

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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.