Home / 5,115.32-7,674.77-2,520.08

Finding the Fourth Proportional to 5,115.32, 7,674.77 and 2,520.08

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Solution

The fourth proportional to 5,115.32, 7,674.77 and 2,520.08 is: 3,781.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,115.32 : 7,674.77 = 2,520.08 : x
  2. Step 2: Convert to fraction form
    5,115.32/7,674.77 = 2,520.08/x
  3. Step 3: Cross multiply
    5,115.32x = 7,674.77 × 2,520.08
  4. Step 4: Simplify right side
    5,115.32x = 19,340,996.01
  5. Step 5: Solve for x
    x = 19,340,996.01/5,115.32
  6. Step 6: Final answer
    x = 3,781.00

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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.