Home / 3,904.61-5,856.31-1,438.87

Finding the Fourth Proportional to 3,904.61, 5,856.31 and 1,438.87

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Solution

The fourth proportional to 3,904.61, 5,856.31 and 1,438.87 is: 2,158.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,904.61 : 5,856.31 = 1,438.87 : x
  2. Step 2: Convert to fraction form
    3,904.61/5,856.31 = 1,438.87/x
  3. Step 3: Cross multiply
    3,904.61x = 5,856.31 × 1,438.87
  4. Step 4: Simplify right side
    3,904.61x = 8,426,479.33
  5. Step 5: Solve for x
    x = 8,426,479.33/3,904.61
  6. Step 6: Final answer
    x = 2,158.09

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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.