Home / 7,854.29-11,782.46-2,589.84

Finding the Fourth Proportional to 7,854.29, 11,782.46 and 2,589.84

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Solution

The fourth proportional to 7,854.29, 11,782.46 and 2,589.84 is: 3,885.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,854.29 : 11,782.46 = 2,589.84 : x
  2. Step 2: Convert to fraction form
    7,854.29/11,782.46 = 2,589.84/x
  3. Step 3: Cross multiply
    7,854.29x = 11,782.46 × 2,589.84
  4. Step 4: Simplify right side
    7,854.29x = 30,514,686.21
  5. Step 5: Solve for x
    x = 30,514,686.21/7,854.29
  6. Step 6: Final answer
    x = 3,885.10

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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.