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Finding the Fourth Proportional to 1,807.49, 2,712.47 and 833.60

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Solution

The fourth proportional to 1,807.49, 2,712.47 and 833.60 is: 1,250.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,807.49 : 2,712.47 = 833.60 : x
  2. Step 2: Convert to fraction form
    1,807.49/2,712.47 = 833.60/x
  3. Step 3: Cross multiply
    1,807.49x = 2,712.47 × 833.60
  4. Step 4: Simplify right side
    1,807.49x = 2,261,114.99
  5. Step 5: Solve for x
    x = 2,261,114.99/1,807.49
  6. Step 6: Final answer
    x = 1,250.97

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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.