Home / 1,512.06-2,263.23-780.64

Finding the Fourth Proportional to 1,512.06, 2,263.23 and 780.64

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Solution

The fourth proportional to 1,512.06, 2,263.23 and 780.64 is: 1,168.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,512.06 : 2,263.23 = 780.64 : x
  2. Step 2: Convert to fraction form
    1,512.06/2,263.23 = 780.64/x
  3. Step 3: Cross multiply
    1,512.06x = 2,263.23 × 780.64
  4. Step 4: Simplify right side
    1,512.06x = 1,766,767.87
  5. Step 5: Solve for x
    x = 1,766,767.87/1,512.06
  6. Step 6: Final answer
    x = 1,168.45

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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.