Home / 1,988.02-2,982.45-601.43

Finding the Fourth Proportional to 1,988.02, 2,982.45 and 601.43

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Solution

The fourth proportional to 1,988.02, 2,982.45 and 601.43 is: 902.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988.02 : 2,982.45 = 601.43 : x
  2. Step 2: Convert to fraction form
    1,988.02/2,982.45 = 601.43/x
  3. Step 3: Cross multiply
    1,988.02x = 2,982.45 × 601.43
  4. Step 4: Simplify right side
    1,988.02x = 1,793,734.90
  5. Step 5: Solve for x
    x = 1,793,734.90/1,988.02
  6. Step 6: Final answer
    x = 902.27

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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.