Home / 7,077.25-10,614.68-2,145.70

Finding the Fourth Proportional to 7,077.25, 10,614.68 and 2,145.70

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Solution

The fourth proportional to 7,077.25, 10,614.68 and 2,145.70 is: 3,218.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,077.25 : 10,614.68 = 2,145.70 : x
  2. Step 2: Convert to fraction form
    7,077.25/10,614.68 = 2,145.70/x
  3. Step 3: Cross multiply
    7,077.25x = 10,614.68 × 2,145.70
  4. Step 4: Simplify right side
    7,077.25x = 22,775,929.46
  5. Step 5: Solve for x
    x = 22,775,929.46/7,077.25
  6. Step 6: Final answer
    x = 3,218.19

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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.