Home / 7,278.40-10,919.44-2,895.84

Finding the Fourth Proportional to 7,278.40, 10,919.44 and 2,895.84

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Solution

The fourth proportional to 7,278.40, 10,919.44 and 2,895.84 is: 4,344.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,278.40 : 10,919.44 = 2,895.84 : x
  2. Step 2: Convert to fraction form
    7,278.40/10,919.44 = 2,895.84/x
  3. Step 3: Cross multiply
    7,278.40x = 10,919.44 × 2,895.84
  4. Step 4: Simplify right side
    7,278.40x = 31,620,951.13
  5. Step 5: Solve for x
    x = 31,620,951.13/7,278.40
  6. Step 6: Final answer
    x = 4,344.49

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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.