Home / 1,512.94-2,087.26-922.45

Finding the Fourth Proportional to 1,512.94, 2,087.26 and 922.45

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Solution

The fourth proportional to 1,512.94, 2,087.26 and 922.45 is: 1,272.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,512.94 : 2,087.26 = 922.45 : x
  2. Step 2: Convert to fraction form
    1,512.94/2,087.26 = 922.45/x
  3. Step 3: Cross multiply
    1,512.94x = 2,087.26 × 922.45
  4. Step 4: Simplify right side
    1,512.94x = 1,925,392.99
  5. Step 5: Solve for x
    x = 1,925,392.99/1,512.94
  6. Step 6: Final answer
    x = 1,272.62

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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.