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Finding the Fourth Proportional to 1,673.87, 2,309.81 and 927.77

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Solution

The fourth proportional to 1,673.87, 2,309.81 and 927.77 is: 1,280.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,673.87 : 2,309.81 = 927.77 : x
  2. Step 2: Convert to fraction form
    1,673.87/2,309.81 = 927.77/x
  3. Step 3: Cross multiply
    1,673.87x = 2,309.81 × 927.77
  4. Step 4: Simplify right side
    1,673.87x = 2,142,956.24
  5. Step 5: Solve for x
    x = 2,142,956.24/1,673.87
  6. Step 6: Final answer
    x = 1,280.24

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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.