Home / 7,076.12-10,613.79-2,916.05

Finding the Fourth Proportional to 7,076.12, 10,613.79 and 2,916.05

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Solution

The fourth proportional to 7,076.12, 10,613.79 and 2,916.05 is: 4,373.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,076.12 : 10,613.79 = 2,916.05 : x
  2. Step 2: Convert to fraction form
    7,076.12/10,613.79 = 2,916.05/x
  3. Step 3: Cross multiply
    7,076.12x = 10,613.79 × 2,916.05
  4. Step 4: Simplify right side
    7,076.12x = 30,950,289.26
  5. Step 5: Solve for x
    x = 30,950,289.26/7,076.12
  6. Step 6: Final answer
    x = 4,373.91

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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.