Home / 2,589.64-3,901.91-2,137.55

Finding the Fourth Proportional to 2,589.64, 3,901.91 and 2,137.55

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Solution

The fourth proportional to 2,589.64, 3,901.91 and 2,137.55 is: 3,220.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,589.64 : 3,901.91 = 2,137.55 : x
  2. Step 2: Convert to fraction form
    2,589.64/3,901.91 = 2,137.55/x
  3. Step 3: Cross multiply
    2,589.64x = 3,901.91 × 2,137.55
  4. Step 4: Simplify right side
    2,589.64x = 8,340,497.52
  5. Step 5: Solve for x
    x = 8,340,497.52/2,589.64
  6. Step 6: Final answer
    x = 3,220.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.