Home / 1,086.40-1,629.57-264.67

Finding the Fourth Proportional to 1,086.40, 1,629.57 and 264.67

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Solution

The fourth proportional to 1,086.40, 1,629.57 and 264.67 is: 397.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086.40 : 1,629.57 = 264.67 : x
  2. Step 2: Convert to fraction form
    1,086.40/1,629.57 = 264.67/x
  3. Step 3: Cross multiply
    1,086.40x = 1,629.57 × 264.67
  4. Step 4: Simplify right side
    1,086.40x = 431,293.72
  5. Step 5: Solve for x
    x = 431,293.72/1,086.40
  6. Step 6: Final answer
    x = 397.00

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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.