Home / 3,151.36-4,348.61-1,857.62

Finding the Fourth Proportional to 3,151.36, 4,348.61 and 1,857.62

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Solution

The fourth proportional to 3,151.36, 4,348.61 and 1,857.62 is: 2,563.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,151.36 : 4,348.61 = 1,857.62 : x
  2. Step 2: Convert to fraction form
    3,151.36/4,348.61 = 1,857.62/x
  3. Step 3: Cross multiply
    3,151.36x = 4,348.61 × 1,857.62
  4. Step 4: Simplify right side
    3,151.36x = 8,078,066.49
  5. Step 5: Solve for x
    x = 8,078,066.49/3,151.36
  6. Step 6: Final answer
    x = 2,563.36

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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.