Home / 2,144.88-3,210.30-1,323.81

Finding the Fourth Proportional to 2,144.88, 3,210.30 and 1,323.81

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Solution

The fourth proportional to 2,144.88, 3,210.30 and 1,323.81 is: 1,981.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,144.88 : 3,210.30 = 1,323.81 : x
  2. Step 2: Convert to fraction form
    2,144.88/3,210.30 = 1,323.81/x
  3. Step 3: Cross multiply
    2,144.88x = 3,210.30 × 1,323.81
  4. Step 4: Simplify right side
    2,144.88x = 4,249,827.24
  5. Step 5: Solve for x
    x = 4,249,827.24/2,144.88
  6. Step 6: Final answer
    x = 1,981.38

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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.