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Finding the Fourth Proportional to 1,663.93, 2,494.51 and 923.50

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Solution

The fourth proportional to 1,663.93, 2,494.51 and 923.50 is: 1,384.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,663.93 : 2,494.51 = 923.50 : x
  2. Step 2: Convert to fraction form
    1,663.93/2,494.51 = 923.50/x
  3. Step 3: Cross multiply
    1,663.93x = 2,494.51 × 923.50
  4. Step 4: Simplify right side
    1,663.93x = 2,303,675.37
  5. Step 5: Solve for x
    x = 2,303,675.37/1,663.93
  6. Step 6: Final answer
    x = 1,384.48

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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.