Home / 2,143.74-3,210.36-1,935.98

Finding the Fourth Proportional to 2,143.74, 3,210.36 and 1,935.98

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Solution

The fourth proportional to 2,143.74, 3,210.36 and 1,935.98 is: 2,899.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,143.74 : 3,210.36 = 1,935.98 : x
  2. Step 2: Convert to fraction form
    2,143.74/3,210.36 = 1,935.98/x
  3. Step 3: Cross multiply
    2,143.74x = 3,210.36 × 1,935.98
  4. Step 4: Simplify right side
    2,143.74x = 6,215,192.75
  5. Step 5: Solve for x
    x = 6,215,192.75/2,143.74
  6. Step 6: Final answer
    x = 2,899.23

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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.