Home / 1,935.29-2,903.34-636.66

Finding the Fourth Proportional to 1,935.29, 2,903.34 and 636.66

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Solution

The fourth proportional to 1,935.29, 2,903.34 and 636.66 is: 955.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,935.29 : 2,903.34 = 636.66 : x
  2. Step 2: Convert to fraction form
    1,935.29/2,903.34 = 636.66/x
  3. Step 3: Cross multiply
    1,935.29x = 2,903.34 × 636.66
  4. Step 4: Simplify right side
    1,935.29x = 1,848,442.83
  5. Step 5: Solve for x
    x = 1,848,442.83/1,935.29
  6. Step 6: Final answer
    x = 955.12

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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.