Home / 2,988.56-4,479-1,233.20

Finding the Fourth Proportional to 2,988.56, 4,479 and 1,233.20

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Solution

The fourth proportional to 2,988.56, 4,479 and 1,233.20 is: 1,848.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,988.56 : 4,479 = 1,233.20 : x
  2. Step 2: Convert to fraction form
    2,988.56/4,479 = 1,233.20/x
  3. Step 3: Cross multiply
    2,988.56x = 4,479 × 1,233.20
  4. Step 4: Simplify right side
    2,988.56x = 5,523,502.80
  5. Step 5: Solve for x
    x = 5,523,502.80/2,988.56
  6. Step 6: Final answer
    x = 1,848.22

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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.