Home / 7,209.78-10,813.76-2,279.02

Finding the Fourth Proportional to 7,209.78, 10,813.76 and 2,279.02

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Solution

The fourth proportional to 7,209.78, 10,813.76 and 2,279.02 is: 3,418.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,209.78 : 10,813.76 = 2,279.02 : x
  2. Step 2: Convert to fraction form
    7,209.78/10,813.76 = 2,279.02/x
  3. Step 3: Cross multiply
    7,209.78x = 10,813.76 × 2,279.02
  4. Step 4: Simplify right side
    7,209.78x = 24,644,775.32
  5. Step 5: Solve for x
    x = 24,644,775.32/7,209.78
  6. Step 6: Final answer
    x = 3,418.24

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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.