Home / 2,140.71-3,210.66-1,043.97

Finding the Fourth Proportional to 2,140.71, 3,210.66 and 1,043.97

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Solution

The fourth proportional to 2,140.71, 3,210.66 and 1,043.97 is: 1,565.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,140.71 : 3,210.66 = 1,043.97 : x
  2. Step 2: Convert to fraction form
    2,140.71/3,210.66 = 1,043.97/x
  3. Step 3: Cross multiply
    2,140.71x = 3,210.66 × 1,043.97
  4. Step 4: Simplify right side
    2,140.71x = 3,351,832.72
  5. Step 5: Solve for x
    x = 3,351,832.72/2,140.71
  6. Step 6: Final answer
    x = 1,565.76

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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.