Home / 1,086.04-1,629.05-436.62

Finding the Fourth Proportional to 1,086.04, 1,629.05 and 436.62

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Solution

The fourth proportional to 1,086.04, 1,629.05 and 436.62 is: 654.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086.04 : 1,629.05 = 436.62 : x
  2. Step 2: Convert to fraction form
    1,086.04/1,629.05 = 436.62/x
  3. Step 3: Cross multiply
    1,086.04x = 1,629.05 × 436.62
  4. Step 4: Simplify right side
    1,086.04x = 711,272.28
  5. Step 5: Solve for x
    x = 711,272.28/1,086.04
  6. Step 6: Final answer
    x = 654.93

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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.