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Finding the Fourth Proportional to 2,595.88, 3,891.30 and 1,728.28

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Solution

The fourth proportional to 2,595.88, 3,891.30 and 1,728.28 is: 2,590.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,595.88 : 3,891.30 = 1,728.28 : x
  2. Step 2: Convert to fraction form
    2,595.88/3,891.30 = 1,728.28/x
  3. Step 3: Cross multiply
    2,595.88x = 3,891.30 × 1,728.28
  4. Step 4: Simplify right side
    2,595.88x = 6,725,255.96
  5. Step 5: Solve for x
    x = 6,725,255.96/2,595.88
  6. Step 6: Final answer
    x = 2,590.74

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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.