Home / 2,918.24-4,378.14-1,274.92

Finding the Fourth Proportional to 2,918.24, 4,378.14 and 1,274.92

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Solution

The fourth proportional to 2,918.24, 4,378.14 and 1,274.92 is: 1,912.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918.24 : 4,378.14 = 1,274.92 : x
  2. Step 2: Convert to fraction form
    2,918.24/4,378.14 = 1,274.92/x
  3. Step 3: Cross multiply
    2,918.24x = 4,378.14 × 1,274.92
  4. Step 4: Simplify right side
    2,918.24x = 5,581,778.25
  5. Step 5: Solve for x
    x = 5,581,778.25/2,918.24
  6. Step 6: Final answer
    x = 1,912.72

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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.