Home / 3,151.57-4,348.45-1,806.56

Finding the Fourth Proportional to 3,151.57, 4,348.45 and 1,806.56

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Solution

The fourth proportional to 3,151.57, 4,348.45 and 1,806.56 is: 2,492.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,151.57 : 4,348.45 = 1,806.56 : x
  2. Step 2: Convert to fraction form
    3,151.57/4,348.45 = 1,806.56/x
  3. Step 3: Cross multiply
    3,151.57x = 4,348.45 × 1,806.56
  4. Step 4: Simplify right side
    3,151.57x = 7,855,735.83
  5. Step 5: Solve for x
    x = 7,855,735.83/3,151.57
  6. Step 6: Final answer
    x = 2,492.64

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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.