Home / 5,158.40-7,120.28-3,033.82

Finding the Fourth Proportional to 5,158.40, 7,120.28 and 3,033.82

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Solution

The fourth proportional to 5,158.40, 7,120.28 and 3,033.82 is: 4,187.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,158.40 : 7,120.28 = 3,033.82 : x
  2. Step 2: Convert to fraction form
    5,158.40/7,120.28 = 3,033.82/x
  3. Step 3: Cross multiply
    5,158.40x = 7,120.28 × 3,033.82
  4. Step 4: Simplify right side
    5,158.40x = 21,601,647.87
  5. Step 5: Solve for x
    x = 21,601,647.87/5,158.40
  6. Step 6: Final answer
    x = 4,187.66

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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.