Home / 7,239.34-10,865.18-2,859.90

Finding the Fourth Proportional to 7,239.34, 10,865.18 and 2,859.90

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Solution

The fourth proportional to 7,239.34, 10,865.18 and 2,859.90 is: 4,292.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,239.34 : 10,865.18 = 2,859.90 : x
  2. Step 2: Convert to fraction form
    7,239.34/10,865.18 = 2,859.90/x
  3. Step 3: Cross multiply
    7,239.34x = 10,865.18 × 2,859.90
  4. Step 4: Simplify right side
    7,239.34x = 31,073,328.28
  5. Step 5: Solve for x
    x = 31,073,328.28/7,239.34
  6. Step 6: Final answer
    x = 4,292.29

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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.