Home / 2,277.33-3,142.51-1,392.99

Finding the Fourth Proportional to 2,277.33, 3,142.51 and 1,392.99

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Solution

The fourth proportional to 2,277.33, 3,142.51 and 1,392.99 is: 1,922.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,277.33 : 3,142.51 = 1,392.99 : x
  2. Step 2: Convert to fraction form
    2,277.33/3,142.51 = 1,392.99/x
  3. Step 3: Cross multiply
    2,277.33x = 3,142.51 × 1,392.99
  4. Step 4: Simplify right side
    2,277.33x = 4,377,485.00
  5. Step 5: Solve for x
    x = 4,377,485.00/2,277.33
  6. Step 6: Final answer
    x = 1,922.20

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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.