Home / 2,981.46-4,472.19-2,054.28

Finding the Fourth Proportional to 2,981.46, 4,472.19 and 2,054.28

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Solution

The fourth proportional to 2,981.46, 4,472.19 and 2,054.28 is: 3,081.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,981.46 : 4,472.19 = 2,054.28 : x
  2. Step 2: Convert to fraction form
    2,981.46/4,472.19 = 2,054.28/x
  3. Step 3: Cross multiply
    2,981.46x = 4,472.19 × 2,054.28
  4. Step 4: Simplify right side
    2,981.46x = 9,187,130.47
  5. Step 5: Solve for x
    x = 9,187,130.47/2,981.46
  6. Step 6: Final answer
    x = 3,081.42

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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.