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Finding the Fourth Proportional to 2,670.39, 3,684.51 and 1,550.66

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Solution

The fourth proportional to 2,670.39, 3,684.51 and 1,550.66 is: 2,139.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,670.39 : 3,684.51 = 1,550.66 : x
  2. Step 2: Convert to fraction form
    2,670.39/3,684.51 = 1,550.66/x
  3. Step 3: Cross multiply
    2,670.39x = 3,684.51 × 1,550.66
  4. Step 4: Simplify right side
    2,670.39x = 5,713,403.85
  5. Step 5: Solve for x
    x = 5,713,403.85/2,670.39
  6. Step 6: Final answer
    x = 2,139.54

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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.