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Finding the Fourth Proportional to 1,995.84, 2,993.06 and 763.59

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Solution

The fourth proportional to 1,995.84, 2,993.06 and 763.59 is: 1,145.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,995.84 : 2,993.06 = 763.59 : x
  2. Step 2: Convert to fraction form
    1,995.84/2,993.06 = 763.59/x
  3. Step 3: Cross multiply
    1,995.84x = 2,993.06 × 763.59
  4. Step 4: Simplify right side
    1,995.84x = 2,285,470.69
  5. Step 5: Solve for x
    x = 2,285,470.69/1,995.84
  6. Step 6: Final answer
    x = 1,145.12

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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.