Home / 7,621.16-11,434.77-2,691.29

Finding the Fourth Proportional to 7,621.16, 11,434.77 and 2,691.29

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Solution

The fourth proportional to 7,621.16, 11,434.77 and 2,691.29 is: 4,038.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,621.16 : 11,434.77 = 2,691.29 : x
  2. Step 2: Convert to fraction form
    7,621.16/11,434.77 = 2,691.29/x
  3. Step 3: Cross multiply
    7,621.16x = 11,434.77 × 2,691.29
  4. Step 4: Simplify right side
    7,621.16x = 30,774,310.74
  5. Step 5: Solve for x
    x = 30,774,310.74/7,621.16
  6. Step 6: Final answer
    x = 4,038.01

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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.