Home / 2,187.42-3,010.45-2,010.39

Finding the Fourth Proportional to 2,187.42, 3,010.45 and 2,010.39

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Solution

The fourth proportional to 2,187.42, 3,010.45 and 2,010.39 is: 2,766.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187.42 : 3,010.45 = 2,010.39 : x
  2. Step 2: Convert to fraction form
    2,187.42/3,010.45 = 2,010.39/x
  3. Step 3: Cross multiply
    2,187.42x = 3,010.45 × 2,010.39
  4. Step 4: Simplify right side
    2,187.42x = 6,052,153.47
  5. Step 5: Solve for x
    x = 6,052,153.47/2,187.42
  6. Step 6: Final answer
    x = 2,766.81

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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.