Home / 2,634.14-3,951.63-990.81

Finding the Fourth Proportional to 2,634.14, 3,951.63 and 990.81

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Solution

The fourth proportional to 2,634.14, 3,951.63 and 990.81 is: 1,486.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,634.14 : 3,951.63 = 990.81 : x
  2. Step 2: Convert to fraction form
    2,634.14/3,951.63 = 990.81/x
  3. Step 3: Cross multiply
    2,634.14x = 3,951.63 × 990.81
  4. Step 4: Simplify right side
    2,634.14x = 3,915,314.52
  5. Step 5: Solve for x
    x = 3,915,314.52/2,634.14
  6. Step 6: Final answer
    x = 1,486.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.