Home / 2,639.54-3,642.35-2,358.87

Finding the Fourth Proportional to 2,639.54, 3,642.35 and 2,358.87

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Solution

The fourth proportional to 2,639.54, 3,642.35 and 2,358.87 is: 3,255.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,639.54 : 3,642.35 = 2,358.87 : x
  2. Step 2: Convert to fraction form
    2,639.54/3,642.35 = 2,358.87/x
  3. Step 3: Cross multiply
    2,639.54x = 3,642.35 × 2,358.87
  4. Step 4: Simplify right side
    2,639.54x = 8,591,818.35
  5. Step 5: Solve for x
    x = 8,591,818.35/2,639.54
  6. Step 6: Final answer
    x = 3,255.05

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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.