Home / 2,639.55-3,955.68-2,560.71

Finding the Fourth Proportional to 2,639.55, 3,955.68 and 2,560.71

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Solution

The fourth proportional to 2,639.55, 3,955.68 and 2,560.71 is: 3,837.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,639.55 : 3,955.68 = 2,560.71 : x
  2. Step 2: Convert to fraction form
    2,639.55/3,955.68 = 2,560.71/x
  3. Step 3: Cross multiply
    2,639.55x = 3,955.68 × 2,560.71
  4. Step 4: Simplify right side
    2,639.55x = 10,129,349.33
  5. Step 5: Solve for x
    x = 10,129,349.33/2,639.55
  6. Step 6: Final answer
    x = 3,837.53

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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.