Home / 3,743.84-5,616.65-1,278.69

Finding the Fourth Proportional to 3,743.84, 5,616.65 and 1,278.69

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Solution

The fourth proportional to 3,743.84, 5,616.65 and 1,278.69 is: 1,918.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,743.84 : 5,616.65 = 1,278.69 : x
  2. Step 2: Convert to fraction form
    3,743.84/5,616.65 = 1,278.69/x
  3. Step 3: Cross multiply
    3,743.84x = 5,616.65 × 1,278.69
  4. Step 4: Simplify right side
    3,743.84x = 7,181,954.19
  5. Step 5: Solve for x
    x = 7,181,954.19/3,743.84
  6. Step 6: Final answer
    x = 1,918.34

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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.