Home / 4,723.90-7,085.82-1,261.15

Finding the Fourth Proportional to 4,723.90, 7,085.82 and 1,261.15

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Solution

The fourth proportional to 4,723.90, 7,085.82 and 1,261.15 is: 1,891.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,723.90 : 7,085.82 = 1,261.15 : x
  2. Step 2: Convert to fraction form
    4,723.90/7,085.82 = 1,261.15/x
  3. Step 3: Cross multiply
    4,723.90x = 7,085.82 × 1,261.15
  4. Step 4: Simplify right side
    4,723.90x = 8,936,281.89
  5. Step 5: Solve for x
    x = 8,936,281.89/4,723.90
  6. Step 6: Final answer
    x = 1,891.72

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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.