Home / 3,749.98-5,172.96-2,864.20

Finding the Fourth Proportional to 3,749.98, 5,172.96 and 2,864.20

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Solution

The fourth proportional to 3,749.98, 5,172.96 and 2,864.20 is: 3,951.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,749.98 : 5,172.96 = 2,864.20 : x
  2. Step 2: Convert to fraction form
    3,749.98/5,172.96 = 2,864.20/x
  3. Step 3: Cross multiply
    3,749.98x = 5,172.96 × 2,864.20
  4. Step 4: Simplify right side
    3,749.98x = 14,816,392.03
  5. Step 5: Solve for x
    x = 14,816,392.03/3,749.98
  6. Step 6: Final answer
    x = 3,951.06

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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.