Home / 2,486.85-3,426.44-1,857.13

Finding the Fourth Proportional to 2,486.85, 3,426.44 and 1,857.13

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Solution

The fourth proportional to 2,486.85, 3,426.44 and 1,857.13 is: 2,558.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,486.85 : 3,426.44 = 1,857.13 : x
  2. Step 2: Convert to fraction form
    2,486.85/3,426.44 = 1,857.13/x
  3. Step 3: Cross multiply
    2,486.85x = 3,426.44 × 1,857.13
  4. Step 4: Simplify right side
    2,486.85x = 6,363,344.52
  5. Step 5: Solve for x
    x = 6,363,344.52/2,486.85
  6. Step 6: Final answer
    x = 2,558.80

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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.