Home / 2,439.35-3,658.54-1,122.79

Finding the Fourth Proportional to 2,439.35, 3,658.54 and 1,122.79

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Solution

The fourth proportional to 2,439.35, 3,658.54 and 1,122.79 is: 1,683.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,439.35 : 3,658.54 = 1,122.79 : x
  2. Step 2: Convert to fraction form
    2,439.35/3,658.54 = 1,122.79/x
  3. Step 3: Cross multiply
    2,439.35x = 3,658.54 × 1,122.79
  4. Step 4: Simplify right side
    2,439.35x = 4,107,772.13
  5. Step 5: Solve for x
    x = 4,107,772.13/2,439.35
  6. Step 6: Final answer
    x = 1,683.96

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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.