Home / 5,419.28-7,478.58-2,935.28

Finding the Fourth Proportional to 5,419.28, 7,478.58 and 2,935.28

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Solution

The fourth proportional to 5,419.28, 7,478.58 and 2,935.28 is: 4,050.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,419.28 : 7,478.58 = 2,935.28 : x
  2. Step 2: Convert to fraction form
    5,419.28/7,478.58 = 2,935.28/x
  3. Step 3: Cross multiply
    5,419.28x = 7,478.58 × 2,935.28
  4. Step 4: Simplify right side
    5,419.28x = 21,951,726.30
  5. Step 5: Solve for x
    x = 21,951,726.30/5,419.28
  6. Step 6: Final answer
    x = 4,050.67

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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.