Home / 2,121.02-3,182.22-1,025.51

Finding the Fourth Proportional to 2,121.02, 3,182.22 and 1,025.51

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Solution

The fourth proportional to 2,121.02, 3,182.22 and 1,025.51 is: 1,538.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,121.02 : 3,182.22 = 1,025.51 : x
  2. Step 2: Convert to fraction form
    2,121.02/3,182.22 = 1,025.51/x
  3. Step 3: Cross multiply
    2,121.02x = 3,182.22 × 1,025.51
  4. Step 4: Simplify right side
    2,121.02x = 3,263,398.43
  5. Step 5: Solve for x
    x = 3,263,398.43/2,121.02
  6. Step 6: Final answer
    x = 1,538.60

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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.