Home / 2,544.40-3,513-2,278.72

Finding the Fourth Proportional to 2,544.40, 3,513 and 2,278.72

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Solution

The fourth proportional to 2,544.40, 3,513 and 2,278.72 is: 3,146.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,544.40 : 3,513 = 2,278.72 : x
  2. Step 2: Convert to fraction form
    2,544.40/3,513 = 2,278.72/x
  3. Step 3: Cross multiply
    2,544.40x = 3,513 × 2,278.72
  4. Step 4: Simplify right side
    2,544.40x = 8,005,143.36
  5. Step 5: Solve for x
    x = 8,005,143.36/2,544.40
  6. Step 6: Final answer
    x = 3,146.18

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1.5x scale

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.