Home / 2,371.14-3,555.90-810.72

Finding the Fourth Proportional to 2,371.14, 3,555.90 and 810.72

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Solution

The fourth proportional to 2,371.14, 3,555.90 and 810.72 is: 1,215.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,371.14 : 3,555.90 = 810.72 : x
  2. Step 2: Convert to fraction form
    2,371.14/3,555.90 = 810.72/x
  3. Step 3: Cross multiply
    2,371.14x = 3,555.90 × 810.72
  4. Step 4: Simplify right side
    2,371.14x = 2,882,839.25
  5. Step 5: Solve for x
    x = 2,882,839.25/2,371.14
  6. Step 6: Final answer
    x = 1,215.80

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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.