Home / 4,986.10-7,475.19-2,521.90

Finding the Fourth Proportional to 4,986.10, 7,475.19 and 2,521.90

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Solution

The fourth proportional to 4,986.10, 7,475.19 and 2,521.90 is: 3,780.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,986.10 : 7,475.19 = 2,521.90 : x
  2. Step 2: Convert to fraction form
    4,986.10/7,475.19 = 2,521.90/x
  3. Step 3: Cross multiply
    4,986.10x = 7,475.19 × 2,521.90
  4. Step 4: Simplify right side
    4,986.10x = 18,851,681.66
  5. Step 5: Solve for x
    x = 18,851,681.66/4,986.10
  6. Step 6: Final answer
    x = 3,780.85

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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.