Home / 3,384.19-5,078.85-1,437.76

Finding the Fourth Proportional to 3,384.19, 5,078.85 and 1,437.76

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Solution

The fourth proportional to 3,384.19, 5,078.85 and 1,437.76 is: 2,157.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,384.19 : 5,078.85 = 1,437.76 : x
  2. Step 2: Convert to fraction form
    3,384.19/5,078.85 = 1,437.76/x
  3. Step 3: Cross multiply
    3,384.19x = 5,078.85 × 1,437.76
  4. Step 4: Simplify right side
    3,384.19x = 7,302,167.38
  5. Step 5: Solve for x
    x = 7,302,167.38/3,384.19
  6. Step 6: Final answer
    x = 2,157.73

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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.