Home / 5,454.81-8,178.57-2,167.02

Finding the Fourth Proportional to 5,454.81, 8,178.57 and 2,167.02

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Solution

The fourth proportional to 5,454.81, 8,178.57 and 2,167.02 is: 3,249.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,454.81 : 8,178.57 = 2,167.02 : x
  2. Step 2: Convert to fraction form
    5,454.81/8,178.57 = 2,167.02/x
  3. Step 3: Cross multiply
    5,454.81x = 8,178.57 × 2,167.02
  4. Step 4: Simplify right side
    5,454.81x = 17,723,124.76
  5. Step 5: Solve for x
    x = 17,723,124.76/5,454.81
  6. Step 6: Final answer
    x = 3,249.08

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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.