Home / 1,987.62-2,981.46-600.97

Finding the Fourth Proportional to 1,987.62, 2,981.46 and 600.97

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Solution

The fourth proportional to 1,987.62, 2,981.46 and 600.97 is: 901.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,987.62 : 2,981.46 = 600.97 : x
  2. Step 2: Convert to fraction form
    1,987.62/2,981.46 = 600.97/x
  3. Step 3: Cross multiply
    1,987.62x = 2,981.46 × 600.97
  4. Step 4: Simplify right side
    1,987.62x = 1,791,768.02
  5. Step 5: Solve for x
    x = 1,791,768.02/1,987.62
  6. Step 6: Final answer
    x = 901.46

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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.