Home / 7,915.52-11,870.40-3,296

Finding the Fourth Proportional to 7,915.52, 11,870.40 and 3,296

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Solution

The fourth proportional to 7,915.52, 11,870.40 and 3,296 is: 4,942.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,915.52 : 11,870.40 = 3,296 : x
  2. Step 2: Convert to fraction form
    7,915.52/11,870.40 = 3,296/x
  3. Step 3: Cross multiply
    7,915.52x = 11,870.40 × 3,296
  4. Step 4: Simplify right side
    7,915.52x = 39,124,838.40
  5. Step 5: Solve for x
    x = 39,124,838.40/7,915.52
  6. Step 6: Final answer
    x = 4,942.80

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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.