Home / 1,988.20-2,981.56-601.13

Finding the Fourth Proportional to 1,988.20, 2,981.56 and 601.13

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Solution

The fourth proportional to 1,988.20, 2,981.56 and 601.13 is: 901.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988.20 : 2,981.56 = 601.13 : x
  2. Step 2: Convert to fraction form
    1,988.20/2,981.56 = 601.13/x
  3. Step 3: Cross multiply
    1,988.20x = 2,981.56 × 601.13
  4. Step 4: Simplify right side
    1,988.20x = 1,792,287.25
  5. Step 5: Solve for x
    x = 1,792,287.25/1,988.20
  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.