Home / 5,475.11-8,213.35-1,777.71

Finding the Fourth Proportional to 5,475.11, 8,213.35 and 1,777.71

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Solution

The fourth proportional to 5,475.11, 8,213.35 and 1,777.71 is: 2,666.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,475.11 : 8,213.35 = 1,777.71 : x
  2. Step 2: Convert to fraction form
    5,475.11/8,213.35 = 1,777.71/x
  3. Step 3: Cross multiply
    5,475.11x = 8,213.35 × 1,777.71
  4. Step 4: Simplify right side
    5,475.11x = 14,600,984.12
  5. Step 5: Solve for x
    x = 14,600,984.12/5,475.11
  6. Step 6: Final answer
    x = 2,666.79

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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.