Home / 3,210.38-4,815.57-1,158.38

Finding the Fourth Proportional to 3,210.38, 4,815.57 and 1,158.38

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Solution

The fourth proportional to 3,210.38, 4,815.57 and 1,158.38 is: 1,737.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,210.38 : 4,815.57 = 1,158.38 : x
  2. Step 2: Convert to fraction form
    3,210.38/4,815.57 = 1,158.38/x
  3. Step 3: Cross multiply
    3,210.38x = 4,815.57 × 1,158.38
  4. Step 4: Simplify right side
    3,210.38x = 5,578,235.90
  5. Step 5: Solve for x
    x = 5,578,235.90/3,210.38
  6. Step 6: Final answer
    x = 1,737.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.