Home / 5,175.34-7,141.75-2,817.48

Finding the Fourth Proportional to 5,175.34, 7,141.75 and 2,817.48

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Solution

The fourth proportional to 5,175.34, 7,141.75 and 2,817.48 is: 3,888.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,175.34 : 7,141.75 = 2,817.48 : x
  2. Step 2: Convert to fraction form
    5,175.34/7,141.75 = 2,817.48/x
  3. Step 3: Cross multiply
    5,175.34x = 7,141.75 × 2,817.48
  4. Step 4: Simplify right side
    5,175.34x = 20,121,723.70
  5. Step 5: Solve for x
    x = 20,121,723.70/5,175.34
  6. Step 6: Final answer
    x = 3,888.00

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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.