Home / 3,688.35-5,082.78-3,059.79

Finding the Fourth Proportional to 3,688.35, 5,082.78 and 3,059.79

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Solution

The fourth proportional to 3,688.35, 5,082.78 and 3,059.79 is: 4,216.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,688.35 : 5,082.78 = 3,059.79 : x
  2. Step 2: Convert to fraction form
    3,688.35/5,082.78 = 3,059.79/x
  3. Step 3: Cross multiply
    3,688.35x = 5,082.78 × 3,059.79
  4. Step 4: Simplify right side
    3,688.35x = 15,552,239.42
  5. Step 5: Solve for x
    x = 15,552,239.42/3,688.35
  6. Step 6: Final answer
    x = 4,216.58

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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.