Home / 3,215.16-4,432.80-2,550.87

Finding the Fourth Proportional to 3,215.16, 4,432.80 and 2,550.87

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Solution

The fourth proportional to 3,215.16, 4,432.80 and 2,550.87 is: 3,516.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,215.16 : 4,432.80 = 2,550.87 : x
  2. Step 2: Convert to fraction form
    3,215.16/4,432.80 = 2,550.87/x
  3. Step 3: Cross multiply
    3,215.16x = 4,432.80 × 2,550.87
  4. Step 4: Simplify right side
    3,215.16x = 11,307,496.54
  5. Step 5: Solve for x
    x = 11,307,496.54/3,215.16
  6. Step 6: Final answer
    x = 3,516.93

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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.