Home / 2,135.00-2,943.63-1,781.43

Finding the Fourth Proportional to 2,135.00, 2,943.63 and 1,781.43

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Solution

The fourth proportional to 2,135.00, 2,943.63 and 1,781.43 is: 2,456.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,135.00 : 2,943.63 = 1,781.43 : x
  2. Step 2: Convert to fraction form
    2,135.00/2,943.63 = 1,781.43/x
  3. Step 3: Cross multiply
    2,135.00x = 2,943.63 × 1,781.43
  4. Step 4: Simplify right side
    2,135.00x = 5,243,870.79
  5. Step 5: Solve for x
    x = 5,243,870.79/2,135.00
  6. Step 6: Final answer
    x = 2,456.15

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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.