Home / 2,687.45-4,015.04-2,595.38

Finding the Fourth Proportional to 2,687.45, 4,015.04 and 2,595.38

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Solution

The fourth proportional to 2,687.45, 4,015.04 and 2,595.38 is: 3,877.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,687.45 : 4,015.04 = 2,595.38 : x
  2. Step 2: Convert to fraction form
    2,687.45/4,015.04 = 2,595.38/x
  3. Step 3: Cross multiply
    2,687.45x = 4,015.04 × 2,595.38
  4. Step 4: Simplify right side
    2,687.45x = 10,420,521.46
  5. Step 5: Solve for x
    x = 10,420,521.46/2,687.45
  6. Step 6: Final answer
    x = 3,877.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.