Home / 1,739.48-2,399.09-1,529.21

Finding the Fourth Proportional to 1,739.48, 2,399.09 and 1,529.21

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Solution

The fourth proportional to 1,739.48, 2,399.09 and 1,529.21 is: 2,109.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,739.48 : 2,399.09 = 1,529.21 : x
  2. Step 2: Convert to fraction form
    1,739.48/2,399.09 = 1,529.21/x
  3. Step 3: Cross multiply
    1,739.48x = 2,399.09 × 1,529.21
  4. Step 4: Simplify right side
    1,739.48x = 3,668,712.42
  5. Step 5: Solve for x
    x = 3,668,712.42/1,739.48
  6. Step 6: Final answer
    x = 2,109.09

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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.