Home / 3,574.28-5,362.20-1,930.78

Finding the Fourth Proportional to 3,574.28, 5,362.20 and 1,930.78

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Solution

The fourth proportional to 3,574.28, 5,362.20 and 1,930.78 is: 2,896.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,574.28 : 5,362.20 = 1,930.78 : x
  2. Step 2: Convert to fraction form
    3,574.28/5,362.20 = 1,930.78/x
  3. Step 3: Cross multiply
    3,574.28x = 5,362.20 × 1,930.78
  4. Step 4: Simplify right side
    3,574.28x = 10,353,228.52
  5. Step 5: Solve for x
    x = 10,353,228.52/3,574.28
  6. Step 6: Final answer
    x = 2,896.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.