Home / 3,047.75-4,207.83-2,489.55

Finding the Fourth Proportional to 3,047.75, 4,207.83 and 2,489.55

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Solution

The fourth proportional to 3,047.75, 4,207.83 and 2,489.55 is: 3,437.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,047.75 : 4,207.83 = 2,489.55 : x
  2. Step 2: Convert to fraction form
    3,047.75/4,207.83 = 2,489.55/x
  3. Step 3: Cross multiply
    3,047.75x = 4,207.83 × 2,489.55
  4. Step 4: Simplify right side
    3,047.75x = 10,475,603.18
  5. Step 5: Solve for x
    x = 10,475,603.18/3,047.75
  6. Step 6: Final answer
    x = 3,437.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.