Home / 5,182.20-7,718.33-5,157.09

Finding the Fourth Proportional to 5,182.20, 7,718.33 and 5,157.09

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Solution

The fourth proportional to 5,182.20, 7,718.33 and 5,157.09 is: 7,680.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,182.20 : 7,718.33 = 5,157.09 : x
  2. Step 2: Convert to fraction form
    5,182.20/7,718.33 = 5,157.09/x
  3. Step 3: Cross multiply
    5,182.20x = 7,718.33 × 5,157.09
  4. Step 4: Simplify right side
    5,182.20x = 39,804,135.35
  5. Step 5: Solve for x
    x = 39,804,135.35/5,182.20
  6. Step 6: Final answer
    x = 7,680.93

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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.