Home / 2,139.87-2,957.99-2,052.66

Finding the Fourth Proportional to 2,139.87, 2,957.99 and 2,052.66

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Solution

The fourth proportional to 2,139.87, 2,957.99 and 2,052.66 is: 2,837.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,139.87 : 2,957.99 = 2,052.66 : x
  2. Step 2: Convert to fraction form
    2,139.87/2,957.99 = 2,052.66/x
  3. Step 3: Cross multiply
    2,139.87x = 2,957.99 × 2,052.66
  4. Step 4: Simplify right side
    2,139.87x = 6,071,738.10
  5. Step 5: Solve for x
    x = 6,071,738.10/2,139.87
  6. Step 6: Final answer
    x = 2,837.44

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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.