Home / 5,168.91-7,133.22-2,931.02

Finding the Fourth Proportional to 5,168.91, 7,133.22 and 2,931.02

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Solution

The fourth proportional to 5,168.91, 7,133.22 and 2,931.02 is: 4,044.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,168.91 : 7,133.22 = 2,931.02 : x
  2. Step 2: Convert to fraction form
    5,168.91/7,133.22 = 2,931.02/x
  3. Step 3: Cross multiply
    5,168.91x = 7,133.22 × 2,931.02
  4. Step 4: Simplify right side
    5,168.91x = 20,907,574.82
  5. Step 5: Solve for x
    x = 20,907,574.82/5,168.91
  6. Step 6: Final answer
    x = 4,044.87

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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.