Home / 1,813.25-2,719.58-702.51

Finding the Fourth Proportional to 1,813.25, 2,719.58 and 702.51

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Solution

The fourth proportional to 1,813.25, 2,719.58 and 702.51 is: 1,053.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,813.25 : 2,719.58 = 702.51 : x
  2. Step 2: Convert to fraction form
    1,813.25/2,719.58 = 702.51/x
  3. Step 3: Cross multiply
    1,813.25x = 2,719.58 × 702.51
  4. Step 4: Simplify right side
    1,813.25x = 1,910,518.43
  5. Step 5: Solve for x
    x = 1,910,518.43/1,813.25
  6. Step 6: Final answer
    x = 1,053.64

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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.