Home / 5,291.12-7,939.15-2,329.22

Finding the Fourth Proportional to 5,291.12, 7,939.15 and 2,329.22

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Solution

The fourth proportional to 5,291.12, 7,939.15 and 2,329.22 is: 3,494.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,291.12 : 7,939.15 = 2,329.22 : x
  2. Step 2: Convert to fraction form
    5,291.12/7,939.15 = 2,329.22/x
  3. Step 3: Cross multiply
    5,291.12x = 7,939.15 × 2,329.22
  4. Step 4: Simplify right side
    5,291.12x = 18,492,040.99
  5. Step 5: Solve for x
    x = 18,492,040.99/5,291.12
  6. Step 6: Final answer
    x = 3,494.92

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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.