Home / 2,756.90-4,133.19-1,888.58

Finding the Fourth Proportional to 2,756.90, 4,133.19 and 1,888.58

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Solution

The fourth proportional to 2,756.90, 4,133.19 and 1,888.58 is: 2,831.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,756.90 : 4,133.19 = 1,888.58 : x
  2. Step 2: Convert to fraction form
    2,756.90/4,133.19 = 1,888.58/x
  3. Step 3: Cross multiply
    2,756.90x = 4,133.19 × 1,888.58
  4. Step 4: Simplify right side
    2,756.90x = 7,805,859.97
  5. Step 5: Solve for x
    x = 7,805,859.97/2,756.90
  6. Step 6: Final answer
    x = 2,831.39

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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.