Home / 5,516.64-7,612.97-3,158.79

Finding the Fourth Proportional to 5,516.64, 7,612.97 and 3,158.79

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Solution

The fourth proportional to 5,516.64, 7,612.97 and 3,158.79 is: 4,359.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,516.64 : 7,612.97 = 3,158.79 : x
  2. Step 2: Convert to fraction form
    5,516.64/7,612.97 = 3,158.79/x
  3. Step 3: Cross multiply
    5,516.64x = 7,612.97 × 3,158.79
  4. Step 4: Simplify right side
    5,516.64x = 24,047,773.51
  5. Step 5: Solve for x
    x = 24,047,773.51/5,516.64
  6. Step 6: Final answer
    x = 4,359.13

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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.