Home / 1,734.19-2,601.45-638.58

Finding the Fourth Proportional to 1,734.19, 2,601.45 and 638.58

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Solution

The fourth proportional to 1,734.19, 2,601.45 and 638.58 is: 957.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,734.19 : 2,601.45 = 638.58 : x
  2. Step 2: Convert to fraction form
    1,734.19/2,601.45 = 638.58/x
  3. Step 3: Cross multiply
    1,734.19x = 2,601.45 × 638.58
  4. Step 4: Simplify right side
    1,734.19x = 1,661,233.94
  5. Step 5: Solve for x
    x = 1,661,233.94/1,734.19
  6. Step 6: Final answer
    x = 957.93

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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.