Home / 5,150.28-7,107.40-2,792.40

Finding the Fourth Proportional to 5,150.28, 7,107.40 and 2,792.40

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Solution

The fourth proportional to 5,150.28, 7,107.40 and 2,792.40 is: 3,853.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,150.28 : 7,107.40 = 2,792.40 : x
  2. Step 2: Convert to fraction form
    5,150.28/7,107.40 = 2,792.40/x
  3. Step 3: Cross multiply
    5,150.28x = 7,107.40 × 2,792.40
  4. Step 4: Simplify right side
    5,150.28x = 19,846,703.76
  5. Step 5: Solve for x
    x = 19,846,703.76/5,150.28
  6. Step 6: Final answer
    x = 3,853.52

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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.