Home / 2,874.11-4,312.62-1,313.91

Finding the Fourth Proportional to 2,874.11, 4,312.62 and 1,313.91

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Solution

The fourth proportional to 2,874.11, 4,312.62 and 1,313.91 is: 1,971.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,874.11 : 4,312.62 = 1,313.91 : x
  2. Step 2: Convert to fraction form
    2,874.11/4,312.62 = 1,313.91/x
  3. Step 3: Cross multiply
    2,874.11x = 4,312.62 × 1,313.91
  4. Step 4: Simplify right side
    2,874.11x = 5,666,394.54
  5. Step 5: Solve for x
    x = 5,666,394.54/2,874.11
  6. Step 6: Final answer
    x = 1,971.53

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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.