Home / 3,391.48-5,088.75-2,158.57

Finding the Fourth Proportional to 3,391.48, 5,088.75 and 2,158.57

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Solution

The fourth proportional to 3,391.48, 5,088.75 and 2,158.57 is: 3,238.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,391.48 : 5,088.75 = 2,158.57 : x
  2. Step 2: Convert to fraction form
    3,391.48/5,088.75 = 2,158.57/x
  3. Step 3: Cross multiply
    3,391.48x = 5,088.75 × 2,158.57
  4. Step 4: Simplify right side
    3,391.48x = 10,984,423.09
  5. Step 5: Solve for x
    x = 10,984,423.09/3,391.48
  6. Step 6: Final answer
    x = 3,238.83

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