Home / 1,988.02-2,981.97-527.18

Finding the Fourth Proportional to 1,988.02, 2,981.97 and 527.18

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Solution

The fourth proportional to 1,988.02, 2,981.97 and 527.18 is: 790.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988.02 : 2,981.97 = 527.18 : x
  2. Step 2: Convert to fraction form
    1,988.02/2,981.97 = 527.18/x
  3. Step 3: Cross multiply
    1,988.02x = 2,981.97 × 527.18
  4. Step 4: Simplify right side
    1,988.02x = 1,572,034.94
  5. Step 5: Solve for x
    x = 1,572,034.94/1,988.02
  6. Step 6: Final answer
    x = 790.75

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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.