Home / 4,871.62-6,721.25-2,981.24

Finding the Fourth Proportional to 4,871.62, 6,721.25 and 2,981.24

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Solution

The fourth proportional to 4,871.62, 6,721.25 and 2,981.24 is: 4,113.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,871.62 : 6,721.25 = 2,981.24 : x
  2. Step 2: Convert to fraction form
    4,871.62/6,721.25 = 2,981.24/x
  3. Step 3: Cross multiply
    4,871.62x = 6,721.25 × 2,981.24
  4. Step 4: Simplify right side
    4,871.62x = 20,037,610.84
  5. Step 5: Solve for x
    x = 20,037,610.84/4,871.62
  6. Step 6: Final answer
    x = 4,113.13

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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.