Home / 3,151.50-4,348.65-1,825.12

Finding the Fourth Proportional to 3,151.50, 4,348.65 and 1,825.12

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Solution

The fourth proportional to 3,151.50, 4,348.65 and 1,825.12 is: 2,518.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,151.50 : 4,348.65 = 1,825.12 : x
  2. Step 2: Convert to fraction form
    3,151.50/4,348.65 = 1,825.12/x
  3. Step 3: Cross multiply
    3,151.50x = 4,348.65 × 1,825.12
  4. Step 4: Simplify right side
    3,151.50x = 7,936,808.09
  5. Step 5: Solve for x
    x = 7,936,808.09/3,151.50
  6. Step 6: Final answer
    x = 2,518.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.