Home / 5,168.81-7,130.46-3,175.91

Finding the Fourth Proportional to 5,168.81, 7,130.46 and 3,175.91

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Solution

The fourth proportional to 5,168.81, 7,130.46 and 3,175.91 is: 4,381.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,168.81 : 7,130.46 = 3,175.91 : x
  2. Step 2: Convert to fraction form
    5,168.81/7,130.46 = 3,175.91/x
  3. Step 3: Cross multiply
    5,168.81x = 7,130.46 × 3,175.91
  4. Step 4: Simplify right side
    5,168.81x = 22,645,702.22
  5. Step 5: Solve for x
    x = 22,645,702.22/5,168.81
  6. Step 6: Final answer
    x = 4,381.22

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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.