Home / 2,371.28-3,557.12-910.85

Finding the Fourth Proportional to 2,371.28, 3,557.12 and 910.85

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Solution

The fourth proportional to 2,371.28, 3,557.12 and 910.85 is: 1,366.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,371.28 : 3,557.12 = 910.85 : x
  2. Step 2: Convert to fraction form
    2,371.28/3,557.12 = 910.85/x
  3. Step 3: Cross multiply
    2,371.28x = 3,557.12 × 910.85
  4. Step 4: Simplify right side
    2,371.28x = 3,239,980.41
  5. Step 5: Solve for x
    x = 3,239,980.41/2,371.28
  6. Step 6: Final answer
    x = 1,366.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.