Home / 1,721.13-2,375.77-1,022.50

Finding the Fourth Proportional to 1,721.13, 2,375.77 and 1,022.50

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Solution

The fourth proportional to 1,721.13, 2,375.77 and 1,022.50 is: 1,411.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,721.13 : 2,375.77 = 1,022.50 : x
  2. Step 2: Convert to fraction form
    1,721.13/2,375.77 = 1,022.50/x
  3. Step 3: Cross multiply
    1,721.13x = 2,375.77 × 1,022.50
  4. Step 4: Simplify right side
    1,721.13x = 2,429,224.83
  5. Step 5: Solve for x
    x = 2,429,224.83/1,721.13
  6. Step 6: Final answer
    x = 1,411.41

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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.