Home / 1,768.39-2,440.67-1,721.59

Finding the Fourth Proportional to 1,768.39, 2,440.67 and 1,721.59

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Solution

The fourth proportional to 1,768.39, 2,440.67 and 1,721.59 is: 2,376.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,768.39 : 2,440.67 = 1,721.59 : x
  2. Step 2: Convert to fraction form
    1,768.39/2,440.67 = 1,721.59/x
  3. Step 3: Cross multiply
    1,768.39x = 2,440.67 × 1,721.59
  4. Step 4: Simplify right side
    1,768.39x = 4,201,824.46
  5. Step 5: Solve for x
    x = 4,201,824.46/1,768.39
  6. Step 6: Final answer
    x = 2,376.07

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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.