Home / 3,289.70-4,934.55-3,020.90

Finding the Fourth Proportional to 3,289.70, 4,934.55 and 3,020.90

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Solution

The fourth proportional to 3,289.70, 4,934.55 and 3,020.90 is: 4,531.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,289.70 : 4,934.55 = 3,020.90 : x
  2. Step 2: Convert to fraction form
    3,289.70/4,934.55 = 3,020.90/x
  3. Step 3: Cross multiply
    3,289.70x = 4,934.55 × 3,020.90
  4. Step 4: Simplify right side
    3,289.70x = 14,906,782.10
  5. Step 5: Solve for x
    x = 14,906,782.10/3,289.70
  6. Step 6: Final answer
    x = 4,531.35

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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.