Home / 5,158.39-7,121.06-3,669.43

Finding the Fourth Proportional to 5,158.39, 7,121.06 and 3,669.43

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Solution

The fourth proportional to 5,158.39, 7,121.06 and 3,669.43 is: 5,065.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,158.39 : 7,121.06 = 3,669.43 : x
  2. Step 2: Convert to fraction form
    5,158.39/7,121.06 = 3,669.43/x
  3. Step 3: Cross multiply
    5,158.39x = 7,121.06 × 3,669.43
  4. Step 4: Simplify right side
    5,158.39x = 26,130,231.20
  5. Step 5: Solve for x
    x = 26,130,231.20/5,158.39
  6. Step 6: Final answer
    x = 5,065.58

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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.