Home / 7,135.41-10,702.20-2,974.65

Finding the Fourth Proportional to 7,135.41, 10,702.20 and 2,974.65

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Solution

The fourth proportional to 7,135.41, 10,702.20 and 2,974.65 is: 4,461.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,135.41 : 10,702.20 = 2,974.65 : x
  2. Step 2: Convert to fraction form
    7,135.41/10,702.20 = 2,974.65/x
  3. Step 3: Cross multiply
    7,135.41x = 10,702.20 × 2,974.65
  4. Step 4: Simplify right side
    7,135.41x = 31,835,299.23
  5. Step 5: Solve for x
    x = 31,835,299.23/7,135.41
  6. Step 6: Final answer
    x = 4,461.59

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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.