Home / 8,085.80-12,129.98-2,537.90

Finding the Fourth Proportional to 8,085.80, 12,129.98 and 2,537.90

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Solution

The fourth proportional to 8,085.80, 12,129.98 and 2,537.90 is: 3,807.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,085.80 : 12,129.98 = 2,537.90 : x
  2. Step 2: Convert to fraction form
    8,085.80/12,129.98 = 2,537.90/x
  3. Step 3: Cross multiply
    8,085.80x = 12,129.98 × 2,537.90
  4. Step 4: Simplify right side
    8,085.80x = 30,784,676.24
  5. Step 5: Solve for x
    x = 30,784,676.24/8,085.80
  6. Step 6: Final answer
    x = 3,807.25

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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.