Home / 2,386.54-3,293.45-1,392.42

Finding the Fourth Proportional to 2,386.54, 3,293.45 and 1,392.42

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Solution

The fourth proportional to 2,386.54, 3,293.45 and 1,392.42 is: 1,921.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,386.54 : 3,293.45 = 1,392.42 : x
  2. Step 2: Convert to fraction form
    2,386.54/3,293.45 = 1,392.42/x
  3. Step 3: Cross multiply
    2,386.54x = 3,293.45 × 1,392.42
  4. Step 4: Simplify right side
    2,386.54x = 4,585,865.65
  5. Step 5: Solve for x
    x = 4,585,865.65/2,386.54
  6. Step 6: Final answer
    x = 1,921.55

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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.