Home / 7,278.40-10,919.24-2,598.89

Finding the Fourth Proportional to 7,278.40, 10,919.24 and 2,598.89

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Solution

The fourth proportional to 7,278.40, 10,919.24 and 2,598.89 is: 3,898.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,278.40 : 10,919.24 = 2,598.89 : x
  2. Step 2: Convert to fraction form
    7,278.40/10,919.24 = 2,598.89/x
  3. Step 3: Cross multiply
    7,278.40x = 10,919.24 × 2,598.89
  4. Step 4: Simplify right side
    7,278.40x = 28,377,903.64
  5. Step 5: Solve for x
    x = 28,377,903.64/7,278.40
  6. Step 6: Final answer
    x = 3,898.92

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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.