Home / 3,956.87-5,461.00-2,278.35

Finding the Fourth Proportional to 3,956.87, 5,461.00 and 2,278.35

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Solution

The fourth proportional to 3,956.87, 5,461.00 and 2,278.35 is: 3,144.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,956.87 : 5,461.00 = 2,278.35 : x
  2. Step 2: Convert to fraction form
    3,956.87/5,461.00 = 2,278.35/x
  3. Step 3: Cross multiply
    3,956.87x = 5,461.00 × 2,278.35
  4. Step 4: Simplify right side
    3,956.87x = 12,442,030.65
  5. Step 5: Solve for x
    x = 12,442,030.65/3,956.87
  6. Step 6: Final answer
    x = 3,144.42

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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.