Home / 1,721.54-2,579.54-1,557.51

Finding the Fourth Proportional to 1,721.54, 2,579.54 and 1,557.51

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Solution

The fourth proportional to 1,721.54, 2,579.54 and 1,557.51 is: 2,333.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,721.54 : 2,579.54 = 1,557.51 : x
  2. Step 2: Convert to fraction form
    1,721.54/2,579.54 = 1,557.51/x
  3. Step 3: Cross multiply
    1,721.54x = 2,579.54 × 1,557.51
  4. Step 4: Simplify right side
    1,721.54x = 4,017,651.56
  5. Step 5: Solve for x
    x = 4,017,651.56/1,721.54
  6. Step 6: Final answer
    x = 2,333.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.