Home / 2,746.36-4,122.28-1,286.56

Finding the Fourth Proportional to 2,746.36, 4,122.28 and 1,286.56

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Solution

The fourth proportional to 2,746.36, 4,122.28 and 1,286.56 is: 1,931.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,746.36 : 4,122.28 = 1,286.56 : x
  2. Step 2: Convert to fraction form
    2,746.36/4,122.28 = 1,286.56/x
  3. Step 3: Cross multiply
    2,746.36x = 4,122.28 × 1,286.56
  4. Step 4: Simplify right side
    2,746.36x = 5,303,560.56
  5. Step 5: Solve for x
    x = 5,303,560.56/2,746.36
  6. Step 6: Final answer
    x = 1,931.12

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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.