Home / 1,988.31-2,981.30-601.23

Finding the Fourth Proportional to 1,988.31, 2,981.30 and 601.23

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Solution

The fourth proportional to 1,988.31, 2,981.30 and 601.23 is: 901.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988.31 : 2,981.30 = 601.23 : x
  2. Step 2: Convert to fraction form
    1,988.31/2,981.30 = 601.23/x
  3. Step 3: Cross multiply
    1,988.31x = 2,981.30 × 601.23
  4. Step 4: Simplify right side
    1,988.31x = 1,792,443.99
  5. Step 5: Solve for x
    x = 1,792,443.99/1,988.31
  6. Step 6: Final answer
    x = 901.49

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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.