Home / 1,987.52-2,981.28-600.84

Finding the Fourth Proportional to 1,987.52, 2,981.28 and 600.84

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Solution

The fourth proportional to 1,987.52, 2,981.28 and 600.84 is: 901.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,987.52 : 2,981.28 = 600.84 : x
  2. Step 2: Convert to fraction form
    1,987.52/2,981.28 = 600.84/x
  3. Step 3: Cross multiply
    1,987.52x = 2,981.28 × 600.84
  4. Step 4: Simplify right side
    1,987.52x = 1,791,272.28
  5. Step 5: Solve for x
    x = 1,791,272.28/1,987.52
  6. Step 6: Final answer
    x = 901.26

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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.