Home / 3,154.74-4,355.10-1,976.46

Finding the Fourth Proportional to 3,154.74, 4,355.10 and 1,976.46

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Solution

The fourth proportional to 3,154.74, 4,355.10 and 1,976.46 is: 2,728.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,154.74 : 4,355.10 = 1,976.46 : x
  2. Step 2: Convert to fraction form
    3,154.74/4,355.10 = 1,976.46/x
  3. Step 3: Cross multiply
    3,154.74x = 4,355.10 × 1,976.46
  4. Step 4: Simplify right side
    3,154.74x = 8,607,680.95
  5. Step 5: Solve for x
    x = 8,607,680.95/3,154.74
  6. Step 6: Final answer
    x = 2,728.49

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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.