Home / 4,747.16-7,115.86-2,278.28

Finding the Fourth Proportional to 4,747.16, 7,115.86 and 2,278.28

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Solution

The fourth proportional to 4,747.16, 7,115.86 and 2,278.28 is: 3,415.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,747.16 : 7,115.86 = 2,278.28 : x
  2. Step 2: Convert to fraction form
    4,747.16/7,115.86 = 2,278.28/x
  3. Step 3: Cross multiply
    4,747.16x = 7,115.86 × 2,278.28
  4. Step 4: Simplify right side
    4,747.16x = 16,211,921.52
  5. Step 5: Solve for x
    x = 16,211,921.52/4,747.16
  6. Step 6: Final answer
    x = 3,415.08

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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.