Home / 7,138.94-10,702.26-3,436.08

Finding the Fourth Proportional to 7,138.94, 10,702.26 and 3,436.08

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Solution

The fourth proportional to 7,138.94, 10,702.26 and 3,436.08 is: 5,151.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,138.94 : 10,702.26 = 3,436.08 : x
  2. Step 2: Convert to fraction form
    7,138.94/10,702.26 = 3,436.08/x
  3. Step 3: Cross multiply
    7,138.94x = 10,702.26 × 3,436.08
  4. Step 4: Simplify right side
    7,138.94x = 36,773,821.54
  5. Step 5: Solve for x
    x = 36,773,821.54/7,138.94
  6. Step 6: Final answer
    x = 5,151.16

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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.