Home / 5,179.04-7,146.98-2,821.14

Finding the Fourth Proportional to 5,179.04, 7,146.98 and 2,821.14

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Solution

The fourth proportional to 5,179.04, 7,146.98 and 2,821.14 is: 3,893.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,179.04 : 7,146.98 = 2,821.14 : x
  2. Step 2: Convert to fraction form
    5,179.04/7,146.98 = 2,821.14/x
  3. Step 3: Cross multiply
    5,179.04x = 7,146.98 × 2,821.14
  4. Step 4: Simplify right side
    5,179.04x = 20,162,631.16
  5. Step 5: Solve for x
    x = 20,162,631.16/5,179.04
  6. Step 6: Final answer
    x = 3,893.12

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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.