Home / 3,515.52-4,851.90-2,118

Finding the Fourth Proportional to 3,515.52, 4,851.90 and 2,118

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Solution

The fourth proportional to 3,515.52, 4,851.90 and 2,118 is: 2,923.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,515.52 : 4,851.90 = 2,118 : x
  2. Step 2: Convert to fraction form
    3,515.52/4,851.90 = 2,118/x
  3. Step 3: Cross multiply
    3,515.52x = 4,851.90 × 2,118
  4. Step 4: Simplify right side
    3,515.52x = 10,276,324.20
  5. Step 5: Solve for x
    x = 10,276,324.20/3,515.52
  6. Step 6: Final answer
    x = 2,923.13

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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.