Home / 5,121.15-7,065.48-4,175.31

Finding the Fourth Proportional to 5,121.15, 7,065.48 and 4,175.31

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Solution

The fourth proportional to 5,121.15, 7,065.48 and 4,175.31 is: 5,760.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,121.15 : 7,065.48 = 4,175.31 : x
  2. Step 2: Convert to fraction form
    5,121.15/7,065.48 = 4,175.31/x
  3. Step 3: Cross multiply
    5,121.15x = 7,065.48 × 4,175.31
  4. Step 4: Simplify right side
    5,121.15x = 29,500,548.42
  5. Step 5: Solve for x
    x = 29,500,548.42/5,121.15
  6. Step 6: Final answer
    x = 5,760.53

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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.