Home / 3,988.74-5,977.84-3,060.75

Finding the Fourth Proportional to 3,988.74, 5,977.84 and 3,060.75

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Solution

The fourth proportional to 3,988.74, 5,977.84 and 3,060.75 is: 4,587.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,988.74 : 5,977.84 = 3,060.75 : x
  2. Step 2: Convert to fraction form
    3,988.74/5,977.84 = 3,060.75/x
  3. Step 3: Cross multiply
    3,988.74x = 5,977.84 × 3,060.75
  4. Step 4: Simplify right side
    3,988.74x = 18,296,673.78
  5. Step 5: Solve for x
    x = 18,296,673.78/3,988.74
  6. Step 6: Final answer
    x = 4,587.08

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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.