Home / 1,695.19-2,339.40-1,198.72

Finding the Fourth Proportional to 1,695.19, 2,339.40 and 1,198.72

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Solution

The fourth proportional to 1,695.19, 2,339.40 and 1,198.72 is: 1,654.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,695.19 : 2,339.40 = 1,198.72 : x
  2. Step 2: Convert to fraction form
    1,695.19/2,339.40 = 1,198.72/x
  3. Step 3: Cross multiply
    1,695.19x = 2,339.40 × 1,198.72
  4. Step 4: Simplify right side
    1,695.19x = 2,804,285.57
  5. Step 5: Solve for x
    x = 2,804,285.57/1,695.19
  6. Step 6: Final answer
    x = 1,654.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.