Home / 3,082.12-4,619.74-1,988.52

Finding the Fourth Proportional to 3,082.12, 4,619.74 and 1,988.52

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Solution

The fourth proportional to 3,082.12, 4,619.74 and 1,988.52 is: 2,980.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,082.12 : 4,619.74 = 1,988.52 : x
  2. Step 2: Convert to fraction form
    3,082.12/4,619.74 = 1,988.52/x
  3. Step 3: Cross multiply
    3,082.12x = 4,619.74 × 1,988.52
  4. Step 4: Simplify right side
    3,082.12x = 9,186,445.38
  5. Step 5: Solve for x
    x = 9,186,445.38/3,082.12
  6. Step 6: Final answer
    x = 2,980.56

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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.