Home / 1,663.18-2,494.85-623.45

Finding the Fourth Proportional to 1,663.18, 2,494.85 and 623.45

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Solution

The fourth proportional to 1,663.18, 2,494.85 and 623.45 is: 935.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,663.18 : 2,494.85 = 623.45 : x
  2. Step 2: Convert to fraction form
    1,663.18/2,494.85 = 623.45/x
  3. Step 3: Cross multiply
    1,663.18x = 2,494.85 × 623.45
  4. Step 4: Simplify right side
    1,663.18x = 1,555,414.23
  5. Step 5: Solve for x
    x = 1,555,414.23/1,663.18
  6. Step 6: Final answer
    x = 935.20

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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.