Home / 3,515.72-4,851.27-1,943.78

Finding the Fourth Proportional to 3,515.72, 4,851.27 and 1,943.78

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Solution

The fourth proportional to 3,515.72, 4,851.27 and 1,943.78 is: 2,682.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,515.72 : 4,851.27 = 1,943.78 : x
  2. Step 2: Convert to fraction form
    3,515.72/4,851.27 = 1,943.78/x
  3. Step 3: Cross multiply
    3,515.72x = 4,851.27 × 1,943.78
  4. Step 4: Simplify right side
    3,515.72x = 9,429,777.34
  5. Step 5: Solve for x
    x = 9,429,777.34/3,515.72
  6. Step 6: Final answer
    x = 2,682.18

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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.