Home / 2,757.28-4,115-2,465.44

Finding the Fourth Proportional to 2,757.28, 4,115 and 2,465.44

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Solution

The fourth proportional to 2,757.28, 4,115 and 2,465.44 is: 3,679.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,757.28 : 4,115 = 2,465.44 : x
  2. Step 2: Convert to fraction form
    2,757.28/4,115 = 2,465.44/x
  3. Step 3: Cross multiply
    2,757.28x = 4,115 × 2,465.44
  4. Step 4: Simplify right side
    2,757.28x = 10,145,285.60
  5. Step 5: Solve for x
    x = 10,145,285.60/2,757.28
  6. Step 6: Final answer
    x = 3,679.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.