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Finding the Fourth Proportional to 1,341.09, 1,850.78 and 1,008.92

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Solution

The fourth proportional to 1,341.09, 1,850.78 and 1,008.92 is: 1,392.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,341.09 : 1,850.78 = 1,008.92 : x
  2. Step 2: Convert to fraction form
    1,341.09/1,850.78 = 1,008.92/x
  3. Step 3: Cross multiply
    1,341.09x = 1,850.78 × 1,008.92
  4. Step 4: Simplify right side
    1,341.09x = 1,867,296.11
  5. Step 5: Solve for x
    x = 1,867,296.11/1,341.09
  6. Step 6: Final answer
    x = 1,392.37

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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.