Home / 1,943.39-2,918.52-1,788.95

Finding the Fourth Proportional to 1,943.39, 2,918.52 and 1,788.95

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Solution

The fourth proportional to 1,943.39, 2,918.52 and 1,788.95 is: 2,686.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,943.39 : 2,918.52 = 1,788.95 : x
  2. Step 2: Convert to fraction form
    1,943.39/2,918.52 = 1,788.95/x
  3. Step 3: Cross multiply
    1,943.39x = 2,918.52 × 1,788.95
  4. Step 4: Simplify right side
    1,943.39x = 5,221,071.76
  5. Step 5: Solve for x
    x = 5,221,071.76/1,943.39
  6. Step 6: Final answer
    x = 2,686.59

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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.