Home / 2,868.08-3,956.76-1,934.96

Finding the Fourth Proportional to 2,868.08, 3,956.76 and 1,934.96

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Solution

The fourth proportional to 2,868.08, 3,956.76 and 1,934.96 is: 2,669.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,868.08 : 3,956.76 = 1,934.96 : x
  2. Step 2: Convert to fraction form
    2,868.08/3,956.76 = 1,934.96/x
  3. Step 3: Cross multiply
    2,868.08x = 3,956.76 × 1,934.96
  4. Step 4: Simplify right side
    2,868.08x = 7,656,172.33
  5. Step 5: Solve for x
    x = 7,656,172.33/2,868.08
  6. Step 6: Final answer
    x = 2,669.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.