Home / 5,008.11-6,912.59-2,912.64

Finding the Fourth Proportional to 5,008.11, 6,912.59 and 2,912.64

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Solution

The fourth proportional to 5,008.11, 6,912.59 and 2,912.64 is: 4,020.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,008.11 : 6,912.59 = 2,912.64 : x
  2. Step 2: Convert to fraction form
    5,008.11/6,912.59 = 2,912.64/x
  3. Step 3: Cross multiply
    5,008.11x = 6,912.59 × 2,912.64
  4. Step 4: Simplify right side
    5,008.11x = 20,133,871.57
  5. Step 5: Solve for x
    x = 20,133,871.57/5,008.11
  6. Step 6: Final answer
    x = 4,020.25

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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.