Home / 3,431.75-5,147.15-1,483.70

Finding the Fourth Proportional to 3,431.75, 5,147.15 and 1,483.70

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Solution

The fourth proportional to 3,431.75, 5,147.15 and 1,483.70 is: 2,225.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431.75 : 5,147.15 = 1,483.70 : x
  2. Step 2: Convert to fraction form
    3,431.75/5,147.15 = 1,483.70/x
  3. Step 3: Cross multiply
    3,431.75x = 5,147.15 × 1,483.70
  4. Step 4: Simplify right side
    3,431.75x = 7,636,793.30
  5. Step 5: Solve for x
    x = 7,636,793.30/3,431.75
  6. Step 6: Final answer
    x = 2,225.34

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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.