Home / 1,172.33-1,617.98-1,133.87

Finding the Fourth Proportional to 1,172.33, 1,617.98 and 1,133.87

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Solution

The fourth proportional to 1,172.33, 1,617.98 and 1,133.87 is: 1,564.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,172.33 : 1,617.98 = 1,133.87 : x
  2. Step 2: Convert to fraction form
    1,172.33/1,617.98 = 1,133.87/x
  3. Step 3: Cross multiply
    1,172.33x = 1,617.98 × 1,133.87
  4. Step 4: Simplify right side
    1,172.33x = 1,834,565.22
  5. Step 5: Solve for x
    x = 1,834,565.22/1,172.33
  6. Step 6: Final answer
    x = 1,564.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.