Home / 4,166.56-5,749.78-2,278.12

Finding the Fourth Proportional to 4,166.56, 5,749.78 and 2,278.12

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Solution

The fourth proportional to 4,166.56, 5,749.78 and 2,278.12 is: 3,143.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,166.56 : 5,749.78 = 2,278.12 : x
  2. Step 2: Convert to fraction form
    4,166.56/5,749.78 = 2,278.12/x
  3. Step 3: Cross multiply
    4,166.56x = 5,749.78 × 2,278.12
  4. Step 4: Simplify right side
    4,166.56x = 13,098,688.81
  5. Step 5: Solve for x
    x = 13,098,688.81/4,166.56
  6. Step 6: Final answer
    x = 3,143.77

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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.