Home / 5,174.15-7,140.33-2,816.28

Finding the Fourth Proportional to 5,174.15, 7,140.33 and 2,816.28

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Solution

The fourth proportional to 5,174.15, 7,140.33 and 2,816.28 is: 3,886.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,174.15 : 7,140.33 = 2,816.28 : x
  2. Step 2: Convert to fraction form
    5,174.15/7,140.33 = 2,816.28/x
  3. Step 3: Cross multiply
    5,174.15x = 7,140.33 × 2,816.28
  4. Step 4: Simplify right side
    5,174.15x = 20,109,168.57
  5. Step 5: Solve for x
    x = 20,109,168.57/5,174.15
  6. Step 6: Final answer
    x = 3,886.47

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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.