Home / 2,715.69-4,072.85-1,154.89

Finding the Fourth Proportional to 2,715.69, 4,072.85 and 1,154.89

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Solution

The fourth proportional to 2,715.69, 4,072.85 and 1,154.89 is: 1,732.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,715.69 : 4,072.85 = 1,154.89 : x
  2. Step 2: Convert to fraction form
    2,715.69/4,072.85 = 1,154.89/x
  3. Step 3: Cross multiply
    2,715.69x = 4,072.85 × 1,154.89
  4. Step 4: Simplify right side
    2,715.69x = 4,703,697.38
  5. Step 5: Solve for x
    x = 4,703,697.38/2,715.69
  6. Step 6: Final answer
    x = 1,732.04

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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.