Home / 1,813.38-2,721.33-888.72

Finding the Fourth Proportional to 1,813.38, 2,721.33 and 888.72

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Solution

The fourth proportional to 1,813.38, 2,721.33 and 888.72 is: 1,333.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,813.38 : 2,721.33 = 888.72 : x
  2. Step 2: Convert to fraction form
    1,813.38/2,721.33 = 888.72/x
  3. Step 3: Cross multiply
    1,813.38x = 2,721.33 × 888.72
  4. Step 4: Simplify right side
    1,813.38x = 2,418,500.40
  5. Step 5: Solve for x
    x = 2,418,500.40/1,813.38
  6. Step 6: Final answer
    x = 1,333.70

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1.5x scale

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.