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Finding the Fourth Proportional to 1,133.69, 1,696.86 and 585.11

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Solution

The fourth proportional to 1,133.69, 1,696.86 and 585.11 is: 875.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,133.69 : 1,696.86 = 585.11 : x
  2. Step 2: Convert to fraction form
    1,133.69/1,696.86 = 585.11/x
  3. Step 3: Cross multiply
    1,133.69x = 1,696.86 × 585.11
  4. Step 4: Simplify right side
    1,133.69x = 992,854.00
  5. Step 5: Solve for x
    x = 992,854.00/1,133.69
  6. Step 6: Final answer
    x = 875.78

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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.