Home / 1,731.98-2,598.31-636.35

Finding the Fourth Proportional to 1,731.98, 2,598.31 and 636.35

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Solution

The fourth proportional to 1,731.98, 2,598.31 and 636.35 is: 954.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,731.98 : 2,598.31 = 636.35 : x
  2. Step 2: Convert to fraction form
    1,731.98/2,598.31 = 636.35/x
  3. Step 3: Cross multiply
    1,731.98x = 2,598.31 × 636.35
  4. Step 4: Simplify right side
    1,731.98x = 1,653,434.57
  5. Step 5: Solve for x
    x = 1,653,434.57/1,731.98
  6. Step 6: Final answer
    x = 954.65

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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.