Home / 2,687.13-4,030.70-837.75

Finding the Fourth Proportional to 2,687.13, 4,030.70 and 837.75

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Solution

The fourth proportional to 2,687.13, 4,030.70 and 837.75 is: 1,256.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,687.13 : 4,030.70 = 837.75 : x
  2. Step 2: Convert to fraction form
    2,687.13/4,030.70 = 837.75/x
  3. Step 3: Cross multiply
    2,687.13x = 4,030.70 × 837.75
  4. Step 4: Simplify right side
    2,687.13x = 3,376,718.93
  5. Step 5: Solve for x
    x = 3,376,718.93/2,687.13
  6. Step 6: Final answer
    x = 1,256.63

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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.