Home / 1,948.26-2,688.60-1,109.13

Finding the Fourth Proportional to 1,948.26, 2,688.60 and 1,109.13

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Solution

The fourth proportional to 1,948.26, 2,688.60 and 1,109.13 is: 1,530.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,948.26 : 2,688.60 = 1,109.13 : x
  2. Step 2: Convert to fraction form
    1,948.26/2,688.60 = 1,109.13/x
  3. Step 3: Cross multiply
    1,948.26x = 2,688.60 × 1,109.13
  4. Step 4: Simplify right side
    1,948.26x = 2,982,006.92
  5. Step 5: Solve for x
    x = 2,982,006.92/1,948.26
  6. Step 6: Final answer
    x = 1,530.60

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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.