Home / 2,764.39-3,812.79-1,925.14

Finding the Fourth Proportional to 2,764.39, 3,812.79 and 1,925.14

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Solution

The fourth proportional to 2,764.39, 3,812.79 and 1,925.14 is: 2,655.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,764.39 : 3,812.79 = 1,925.14 : x
  2. Step 2: Convert to fraction form
    2,764.39/3,812.79 = 1,925.14/x
  3. Step 3: Cross multiply
    2,764.39x = 3,812.79 × 1,925.14
  4. Step 4: Simplify right side
    2,764.39x = 7,340,154.54
  5. Step 5: Solve for x
    x = 7,340,154.54/2,764.39
  6. Step 6: Final answer
    x = 2,655.25

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1.5x scale

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.