Home / 3,517.14-5,275.53-919.98

Finding the Fourth Proportional to 3,517.14, 5,275.53 and 919.98

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Solution

The fourth proportional to 3,517.14, 5,275.53 and 919.98 is: 1,379.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,517.14 : 5,275.53 = 919.98 : x
  2. Step 2: Convert to fraction form
    3,517.14/5,275.53 = 919.98/x
  3. Step 3: Cross multiply
    3,517.14x = 5,275.53 × 919.98
  4. Step 4: Simplify right side
    3,517.14x = 4,853,382.09
  5. Step 5: Solve for x
    x = 4,853,382.09/3,517.14
  6. Step 6: Final answer
    x = 1,379.92

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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.