Home / 6,749.56-9,315.10-3,916.09

Finding the Fourth Proportional to 6,749.56, 9,315.10 and 3,916.09

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Solution

The fourth proportional to 6,749.56, 9,315.10 and 3,916.09 is: 5,404.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,749.56 : 9,315.10 = 3,916.09 : x
  2. Step 2: Convert to fraction form
    6,749.56/9,315.10 = 3,916.09/x
  3. Step 3: Cross multiply
    6,749.56x = 9,315.10 × 3,916.09
  4. Step 4: Simplify right side
    6,749.56x = 36,478,769.96
  5. Step 5: Solve for x
    x = 36,478,769.96/6,749.56
  6. Step 6: Final answer
    x = 5,404.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.