Home / 2,670.28-3,684.41-1,550.63

Finding the Fourth Proportional to 2,670.28, 3,684.41 and 1,550.63

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Solution

The fourth proportional to 2,670.28, 3,684.41 and 1,550.63 is: 2,139.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,670.28 : 3,684.41 = 1,550.63 : x
  2. Step 2: Convert to fraction form
    2,670.28/3,684.41 = 1,550.63/x
  3. Step 3: Cross multiply
    2,670.28x = 3,684.41 × 1,550.63
  4. Step 4: Simplify right side
    2,670.28x = 5,713,148.93
  5. Step 5: Solve for x
    x = 5,713,148.93/2,670.28
  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.