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Finding the Fourth Proportional to 1,975.84, 2,965.28 and 744.37

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Solution

The fourth proportional to 1,975.84, 2,965.28 and 744.37 is: 1,117.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,975.84 : 2,965.28 = 744.37 : x
  2. Step 2: Convert to fraction form
    1,975.84/2,965.28 = 744.37/x
  3. Step 3: Cross multiply
    1,975.84x = 2,965.28 × 744.37
  4. Step 4: Simplify right side
    1,975.84x = 2,207,259.92
  5. Step 5: Solve for x
    x = 2,207,259.92/1,975.84
  6. Step 6: Final answer
    x = 1,117.13

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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.