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Finding the Fourth Proportional to 1,092.99, 1,630.65 and 1,040.81

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Solution

The fourth proportional to 1,092.99, 1,630.65 and 1,040.81 is: 1,552.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,092.99 : 1,630.65 = 1,040.81 : x
  2. Step 2: Convert to fraction form
    1,092.99/1,630.65 = 1,040.81/x
  3. Step 3: Cross multiply
    1,092.99x = 1,630.65 × 1,040.81
  4. Step 4: Simplify right side
    1,092.99x = 1,697,196.83
  5. Step 5: Solve for x
    x = 1,697,196.83/1,092.99
  6. Step 6: Final answer
    x = 1,552.80

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.