Home / 6,675.68-10,011.36-2,781.20

Finding the Fourth Proportional to 6,675.68, 10,011.36 and 2,781.20

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Solution

The fourth proportional to 6,675.68, 10,011.36 and 2,781.20 is: 4,170.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,675.68 : 10,011.36 = 2,781.20 : x
  2. Step 2: Convert to fraction form
    6,675.68/10,011.36 = 2,781.20/x
  3. Step 3: Cross multiply
    6,675.68x = 10,011.36 × 2,781.20
  4. Step 4: Simplify right side
    6,675.68x = 27,843,594.43
  5. Step 5: Solve for x
    x = 27,843,594.43/6,675.68
  6. Step 6: Final answer
    x = 4,170.90

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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.