Home / 1,721.58-2,569.76-1,479.66

Finding the Fourth Proportional to 1,721.58, 2,569.76 and 1,479.66

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Solution

The fourth proportional to 1,721.58, 2,569.76 and 1,479.66 is: 2,208.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,721.58 : 2,569.76 = 1,479.66 : x
  2. Step 2: Convert to fraction form
    1,721.58/2,569.76 = 1,479.66/x
  3. Step 3: Cross multiply
    1,721.58x = 2,569.76 × 1,479.66
  4. Step 4: Simplify right side
    1,721.58x = 3,802,363.68
  5. Step 5: Solve for x
    x = 3,802,363.68/1,721.58
  6. Step 6: Final answer
    x = 2,208.65

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.