Home / 2,930.80-4,052.28-2,561.92

Finding the Fourth Proportional to 2,930.80, 4,052.28 and 2,561.92

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Solution

The fourth proportional to 2,930.80, 4,052.28 and 2,561.92 is: 3,542.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,930.80 : 4,052.28 = 2,561.92 : x
  2. Step 2: Convert to fraction form
    2,930.80/4,052.28 = 2,561.92/x
  3. Step 3: Cross multiply
    2,930.80x = 4,052.28 × 2,561.92
  4. Step 4: Simplify right side
    2,930.80x = 10,381,617.18
  5. Step 5: Solve for x
    x = 10,381,617.18/2,930.80
  6. Step 6: Final answer
    x = 3,542.25

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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.