Home / 1,729.13-2,593.70-430.59

Finding the Fourth Proportional to 1,729.13, 2,593.70 and 430.59

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Solution

The fourth proportional to 1,729.13, 2,593.70 and 430.59 is: 645.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,729.13 : 2,593.70 = 430.59 : x
  2. Step 2: Convert to fraction form
    1,729.13/2,593.70 = 430.59/x
  3. Step 3: Cross multiply
    1,729.13x = 2,593.70 × 430.59
  4. Step 4: Simplify right side
    1,729.13x = 1,116,822.36
  5. Step 5: Solve for x
    x = 1,116,822.36/1,729.13
  6. Step 6: Final answer
    x = 645.89

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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.