Home / 1,943.29-2,929.26-1,830.40

Finding the Fourth Proportional to 1,943.29, 2,929.26 and 1,830.40

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Solution

The fourth proportional to 1,943.29, 2,929.26 and 1,830.40 is: 2,759.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,943.29 : 2,929.26 = 1,830.40 : x
  2. Step 2: Convert to fraction form
    1,943.29/2,929.26 = 1,830.40/x
  3. Step 3: Cross multiply
    1,943.29x = 2,929.26 × 1,830.40
  4. Step 4: Simplify right side
    1,943.29x = 5,361,717.04
  5. Step 5: Solve for x
    x = 5,361,717.04/1,943.29
  6. Step 6: Final answer
    x = 2,759.09

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.