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Finding the Fourth Proportional to 2,725.95, 4,088.95 and 2,181.59

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Solution

The fourth proportional to 2,725.95, 4,088.95 and 2,181.59 is: 3,272.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,725.95 : 4,088.95 = 2,181.59 : x
  2. Step 2: Convert to fraction form
    2,725.95/4,088.95 = 2,181.59/x
  3. Step 3: Cross multiply
    2,725.95x = 4,088.95 × 2,181.59
  4. Step 4: Simplify right side
    2,725.95x = 8,920,409.34
  5. Step 5: Solve for x
    x = 8,920,409.34/2,725.95
  6. Step 6: Final answer
    x = 3,272.41

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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.