Home / 1,948.92-2,689.23-1,109.35

Finding the Fourth Proportional to 1,948.92, 2,689.23 and 1,109.35

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Solution

The fourth proportional to 1,948.92, 2,689.23 and 1,109.35 is: 1,530.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,948.92 : 2,689.23 = 1,109.35 : x
  2. Step 2: Convert to fraction form
    1,948.92/2,689.23 = 1,109.35/x
  3. Step 3: Cross multiply
    1,948.92x = 2,689.23 × 1,109.35
  4. Step 4: Simplify right side
    1,948.92x = 2,983,297.30
  5. Step 5: Solve for x
    x = 2,983,297.30/1,948.92
  6. Step 6: Final answer
    x = 1,530.74

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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.