Home / 1,086.30-1,629.86-501.59

Finding the Fourth Proportional to 1,086.30, 1,629.86 and 501.59

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Solution

The fourth proportional to 1,086.30, 1,629.86 and 501.59 is: 752.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086.30 : 1,629.86 = 501.59 : x
  2. Step 2: Convert to fraction form
    1,086.30/1,629.86 = 501.59/x
  3. Step 3: Cross multiply
    1,086.30x = 1,629.86 × 501.59
  4. Step 4: Simplify right side
    1,086.30x = 817,510.82
  5. Step 5: Solve for x
    x = 817,510.82/1,086.30
  6. Step 6: Final answer
    x = 752.56

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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.