Home / 2,481.52-3,718.76-1,931.28

Finding the Fourth Proportional to 2,481.52, 3,718.76 and 1,931.28

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Solution

The fourth proportional to 2,481.52, 3,718.76 and 1,931.28 is: 2,894.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,481.52 : 3,718.76 = 1,931.28 : x
  2. Step 2: Convert to fraction form
    2,481.52/3,718.76 = 1,931.28/x
  3. Step 3: Cross multiply
    2,481.52x = 3,718.76 × 1,931.28
  4. Step 4: Simplify right side
    2,481.52x = 7,181,966.81
  5. Step 5: Solve for x
    x = 7,181,966.81/2,481.52
  6. Step 6: Final answer
    x = 2,894.18

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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.