Home / 5,110.98-7,053.48-2,872.98

Finding the Fourth Proportional to 5,110.98, 7,053.48 and 2,872.98

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Solution

The fourth proportional to 5,110.98, 7,053.48 and 2,872.98 is: 3,964.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,110.98 : 7,053.48 = 2,872.98 : x
  2. Step 2: Convert to fraction form
    5,110.98/7,053.48 = 2,872.98/x
  3. Step 3: Cross multiply
    5,110.98x = 7,053.48 × 2,872.98
  4. Step 4: Simplify right side
    5,110.98x = 20,264,506.97
  5. Step 5: Solve for x
    x = 20,264,506.97/5,110.98
  6. Step 6: Final answer
    x = 3,964.90

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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.