Home / 1,721.68-2,588.76-1,586.37

Finding the Fourth Proportional to 1,721.68, 2,588.76 and 1,586.37

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Solution

The fourth proportional to 1,721.68, 2,588.76 and 1,586.37 is: 2,385.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,721.68 : 2,588.76 = 1,586.37 : x
  2. Step 2: Convert to fraction form
    1,721.68/2,588.76 = 1,586.37/x
  3. Step 3: Cross multiply
    1,721.68x = 2,588.76 × 1,586.37
  4. Step 4: Simplify right side
    1,721.68x = 4,106,731.20
  5. Step 5: Solve for x
    x = 4,106,731.20/1,721.68
  6. Step 6: Final answer
    x = 2,385.30

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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.