Home / 3,438.91-5,158.65-1,099.25

Finding the Fourth Proportional to 3,438.91, 5,158.65 and 1,099.25

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Solution

The fourth proportional to 3,438.91, 5,158.65 and 1,099.25 is: 1,648.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,438.91 : 5,158.65 = 1,099.25 : x
  2. Step 2: Convert to fraction form
    3,438.91/5,158.65 = 1,099.25/x
  3. Step 3: Cross multiply
    3,438.91x = 5,158.65 × 1,099.25
  4. Step 4: Simplify right side
    3,438.91x = 5,670,643.69
  5. Step 5: Solve for x
    x = 5,670,643.69/3,438.91
  6. Step 6: Final answer
    x = 1,648.96

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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.