Home / 3,351.73-4,628.51-2,158.79

Finding the Fourth Proportional to 3,351.73, 4,628.51 and 2,158.79

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Solution

The fourth proportional to 3,351.73, 4,628.51 and 2,158.79 is: 2,981.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,351.73 : 4,628.51 = 2,158.79 : x
  2. Step 2: Convert to fraction form
    3,351.73/4,628.51 = 2,158.79/x
  3. Step 3: Cross multiply
    3,351.73x = 4,628.51 × 2,158.79
  4. Step 4: Simplify right side
    3,351.73x = 9,991,981.10
  5. Step 5: Solve for x
    x = 9,991,981.10/3,351.73
  6. Step 6: Final answer
    x = 2,981.14

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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.