Home / 3,749.84-5,172.10-2,864.12

Finding the Fourth Proportional to 3,749.84, 5,172.10 and 2,864.12

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Solution

The fourth proportional to 3,749.84, 5,172.10 and 2,864.12 is: 3,950.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,749.84 : 5,172.10 = 2,864.12 : x
  2. Step 2: Convert to fraction form
    3,749.84/5,172.10 = 2,864.12/x
  3. Step 3: Cross multiply
    3,749.84x = 5,172.10 × 2,864.12
  4. Step 4: Simplify right side
    3,749.84x = 14,813,515.05
  5. Step 5: Solve for x
    x = 14,813,515.05/3,749.84
  6. Step 6: Final answer
    x = 3,950.44

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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.