Home / 2,725.40-4,088.10-1,631.90

Finding the Fourth Proportional to 2,725.40, 4,088.10 and 1,631.90

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Solution

The fourth proportional to 2,725.40, 4,088.10 and 1,631.90 is: 2,447.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,725.40 : 4,088.10 = 1,631.90 : x
  2. Step 2: Convert to fraction form
    2,725.40/4,088.10 = 1,631.90/x
  3. Step 3: Cross multiply
    2,725.40x = 4,088.10 × 1,631.90
  4. Step 4: Simplify right side
    2,725.40x = 6,671,370.39
  5. Step 5: Solve for x
    x = 6,671,370.39/2,725.40
  6. Step 6: Final answer
    x = 2,447.85

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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.