Home / 7,279.76-10,043.88-4,135.92

Finding the Fourth Proportional to 7,279.76, 10,043.88 and 4,135.92

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Solution

The fourth proportional to 7,279.76, 10,043.88 and 4,135.92 is: 5,706.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,279.76 : 10,043.88 = 4,135.92 : x
  2. Step 2: Convert to fraction form
    7,279.76/10,043.88 = 4,135.92/x
  3. Step 3: Cross multiply
    7,279.76x = 10,043.88 × 4,135.92
  4. Step 4: Simplify right side
    7,279.76x = 41,540,684.17
  5. Step 5: Solve for x
    x = 41,540,684.17/7,279.76
  6. Step 6: Final answer
    x = 5,706.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.