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Finding the Fourth Proportional to 1,136.96, 1,705.74 and 616.74

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Solution

The fourth proportional to 1,136.96, 1,705.74 and 616.74 is: 925.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,136.96 : 1,705.74 = 616.74 : x
  2. Step 2: Convert to fraction form
    1,136.96/1,705.74 = 616.74/x
  3. Step 3: Cross multiply
    1,136.96x = 1,705.74 × 616.74
  4. Step 4: Simplify right side
    1,136.96x = 1,051,998.09
  5. Step 5: Solve for x
    x = 1,051,998.09/1,136.96
  6. Step 6: Final answer
    x = 925.27

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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.