Home / 5,396.55-8,091.78-1,647.66

Finding the Fourth Proportional to 5,396.55, 8,091.78 and 1,647.66

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Solution

The fourth proportional to 5,396.55, 8,091.78 and 1,647.66 is: 2,470.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,396.55 : 8,091.78 = 1,647.66 : x
  2. Step 2: Convert to fraction form
    5,396.55/8,091.78 = 1,647.66/x
  3. Step 3: Cross multiply
    5,396.55x = 8,091.78 × 1,647.66
  4. Step 4: Simplify right side
    5,396.55x = 13,332,502.23
  5. Step 5: Solve for x
    x = 13,332,502.23/5,396.55
  6. Step 6: Final answer
    x = 2,470.56

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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.