Home / 5,279.34-7,915.32-2,316.36

Finding the Fourth Proportional to 5,279.34, 7,915.32 and 2,316.36

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Solution

The fourth proportional to 5,279.34, 7,915.32 and 2,316.36 is: 3,472.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,279.34 : 7,915.32 = 2,316.36 : x
  2. Step 2: Convert to fraction form
    5,279.34/7,915.32 = 2,316.36/x
  3. Step 3: Cross multiply
    5,279.34x = 7,915.32 × 2,316.36
  4. Step 4: Simplify right side
    5,279.34x = 18,334,730.64
  5. Step 5: Solve for x
    x = 18,334,730.64/5,279.34
  6. Step 6: Final answer
    x = 3,472.92

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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.