Home / 2,767.50-4,145.04-2,149.34

Finding the Fourth Proportional to 2,767.50, 4,145.04 and 2,149.34

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Solution

The fourth proportional to 2,767.50, 4,145.04 and 2,149.34 is: 3,219.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,767.50 : 4,145.04 = 2,149.34 : x
  2. Step 2: Convert to fraction form
    2,767.50/4,145.04 = 2,149.34/x
  3. Step 3: Cross multiply
    2,767.50x = 4,145.04 × 2,149.34
  4. Step 4: Simplify right side
    2,767.50x = 8,909,079.55
  5. Step 5: Solve for x
    x = 8,909,079.55/2,767.50
  6. Step 6: Final answer
    x = 3,219.18

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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.