Home / 2,701.78-4,042.56-1,923.57

Finding the Fourth Proportional to 2,701.78, 4,042.56 and 1,923.57

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Solution

The fourth proportional to 2,701.78, 4,042.56 and 1,923.57 is: 2,878.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,701.78 : 4,042.56 = 1,923.57 : x
  2. Step 2: Convert to fraction form
    2,701.78/4,042.56 = 1,923.57/x
  3. Step 3: Cross multiply
    2,701.78x = 4,042.56 × 1,923.57
  4. Step 4: Simplify right side
    2,701.78x = 7,776,147.14
  5. Step 5: Solve for x
    x = 7,776,147.14/2,701.78
  6. Step 6: Final answer
    x = 2,878.16

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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.