Home / 1,988.45-2,982.98-601.61

Finding the Fourth Proportional to 1,988.45, 2,982.98 and 601.61

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Solution

The fourth proportional to 1,988.45, 2,982.98 and 601.61 is: 902.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988.45 : 2,982.98 = 601.61 : x
  2. Step 2: Convert to fraction form
    1,988.45/2,982.98 = 601.61/x
  3. Step 3: Cross multiply
    1,988.45x = 2,982.98 × 601.61
  4. Step 4: Simplify right side
    1,988.45x = 1,794,572.67
  5. Step 5: Solve for x
    x = 1,794,572.67/1,988.45
  6. Step 6: Final answer
    x = 902.50

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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.