Home / 5,279.49-7,920.11-2,357.69

Finding the Fourth Proportional to 5,279.49, 7,920.11 and 2,357.69

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Solution

The fourth proportional to 5,279.49, 7,920.11 and 2,357.69 is: 3,536.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,279.49 : 7,920.11 = 2,357.69 : x
  2. Step 2: Convert to fraction form
    5,279.49/7,920.11 = 2,357.69/x
  3. Step 3: Cross multiply
    5,279.49x = 7,920.11 × 2,357.69
  4. Step 4: Simplify right side
    5,279.49x = 18,673,130.44
  5. Step 5: Solve for x
    x = 18,673,130.44/5,279.49
  6. Step 6: Final answer
    x = 3,536.92

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1.5x scale

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.