Home / 3,981.46-5,972.56-1,641.62

Finding the Fourth Proportional to 3,981.46, 5,972.56 and 1,641.62

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Solution

The fourth proportional to 3,981.46, 5,972.56 and 1,641.62 is: 2,462.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981.46 : 5,972.56 = 1,641.62 : x
  2. Step 2: Convert to fraction form
    3,981.46/5,972.56 = 1,641.62/x
  3. Step 3: Cross multiply
    3,981.46x = 5,972.56 × 1,641.62
  4. Step 4: Simplify right side
    3,981.46x = 9,804,673.95
  5. Step 5: Solve for x
    x = 9,804,673.95/3,981.46
  6. Step 6: Final answer
    x = 2,462.58

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1.5x scale

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.