Home / 4,964.79-6,849.69-2,947.74

Finding the Fourth Proportional to 4,964.79, 6,849.69 and 2,947.74

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Solution

The fourth proportional to 4,964.79, 6,849.69 and 2,947.74 is: 4,066.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,964.79 : 6,849.69 = 2,947.74 : x
  2. Step 2: Convert to fraction form
    4,964.79/6,849.69 = 2,947.74/x
  3. Step 3: Cross multiply
    4,964.79x = 6,849.69 × 2,947.74
  4. Step 4: Simplify right side
    4,964.79x = 20,191,105.20
  5. Step 5: Solve for x
    x = 20,191,105.20/4,964.79
  6. Step 6: Final answer
    x = 4,066.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.