Home / 5,116.92-7,661.13-2,612.72

Finding the Fourth Proportional to 5,116.92, 7,661.13 and 2,612.72

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Solution

The fourth proportional to 5,116.92, 7,661.13 and 2,612.72 is: 3,911.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,116.92 : 7,661.13 = 2,612.72 : x
  2. Step 2: Convert to fraction form
    5,116.92/7,661.13 = 2,612.72/x
  3. Step 3: Cross multiply
    5,116.92x = 7,661.13 × 2,612.72
  4. Step 4: Simplify right side
    5,116.92x = 20,016,411.63
  5. Step 5: Solve for x
    x = 20,016,411.63/5,116.92
  6. Step 6: Final answer
    x = 3,911.81

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1.5x scale

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.