Home / 1,721.13-2,375.73-1,012.95

Finding the Fourth Proportional to 1,721.13, 2,375.73 and 1,012.95

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Solution

The fourth proportional to 1,721.13, 2,375.73 and 1,012.95 is: 1,398.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,721.13 : 2,375.73 = 1,012.95 : x
  2. Step 2: Convert to fraction form
    1,721.13/2,375.73 = 1,012.95/x
  3. Step 3: Cross multiply
    1,721.13x = 2,375.73 × 1,012.95
  4. Step 4: Simplify right side
    1,721.13x = 2,406,495.70
  5. Step 5: Solve for x
    x = 2,406,495.70/1,721.13
  6. Step 6: Final answer
    x = 1,398.21

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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.