Home / 1,721.05-2,565.03-1,718.31

Finding the Fourth Proportional to 1,721.05, 2,565.03 and 1,718.31

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Solution

The fourth proportional to 1,721.05, 2,565.03 and 1,718.31 is: 2,560.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,721.05 : 2,565.03 = 1,718.31 : x
  2. Step 2: Convert to fraction form
    1,721.05/2,565.03 = 1,718.31/x
  3. Step 3: Cross multiply
    1,721.05x = 2,565.03 × 1,718.31
  4. Step 4: Simplify right side
    1,721.05x = 4,407,532.76
  5. Step 5: Solve for x
    x = 4,407,532.76/1,721.05
  6. Step 6: Final answer
    x = 2,560.96

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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.