Home / 2,310.13-3,187.93-1,262.20

Finding the Fourth Proportional to 2,310.13, 3,187.93 and 1,262.20

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Solution

The fourth proportional to 2,310.13, 3,187.93 and 1,262.20 is: 1,741.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,310.13 : 3,187.93 = 1,262.20 : x
  2. Step 2: Convert to fraction form
    2,310.13/3,187.93 = 1,262.20/x
  3. Step 3: Cross multiply
    2,310.13x = 3,187.93 × 1,262.20
  4. Step 4: Simplify right side
    2,310.13x = 4,023,805.25
  5. Step 5: Solve for x
    x = 4,023,805.25/2,310.13
  6. Step 6: Final answer
    x = 1,741.81

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1.5x scale

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.