Home / 7,278.68-10,920.32-2,598.59

Finding the Fourth Proportional to 7,278.68, 10,920.32 and 2,598.59

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Solution

The fourth proportional to 7,278.68, 10,920.32 and 2,598.59 is: 3,898.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,278.68 : 10,920.32 = 2,598.59 : x
  2. Step 2: Convert to fraction form
    7,278.68/10,920.32 = 2,598.59/x
  3. Step 3: Cross multiply
    7,278.68x = 10,920.32 × 2,598.59
  4. Step 4: Simplify right side
    7,278.68x = 28,377,379.75
  5. Step 5: Solve for x
    x = 28,377,379.75/7,278.68
  6. Step 6: Final answer
    x = 3,898.70

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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.