Home / 1,551.99-2,140.92-1,110.54

Finding the Fourth Proportional to 1,551.99, 2,140.92 and 1,110.54

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Solution

The fourth proportional to 1,551.99, 2,140.92 and 1,110.54 is: 1,531.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,551.99 : 2,140.92 = 1,110.54 : x
  2. Step 2: Convert to fraction form
    1,551.99/2,140.92 = 1,110.54/x
  3. Step 3: Cross multiply
    1,551.99x = 2,140.92 × 1,110.54
  4. Step 4: Simplify right side
    1,551.99x = 2,377,577.30
  5. Step 5: Solve for x
    x = 2,377,577.30/1,551.99
  6. Step 6: Final answer
    x = 1,531.95

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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.