Home / 2,472.07-3,415.80-1,945.14

Finding the Fourth Proportional to 2,472.07, 3,415.80 and 1,945.14

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Solution

The fourth proportional to 2,472.07, 3,415.80 and 1,945.14 is: 2,687.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,472.07 : 3,415.80 = 1,945.14 : x
  2. Step 2: Convert to fraction form
    2,472.07/3,415.80 = 1,945.14/x
  3. Step 3: Cross multiply
    2,472.07x = 3,415.80 × 1,945.14
  4. Step 4: Simplify right side
    2,472.07x = 6,644,196.89
  5. Step 5: Solve for x
    x = 6,644,196.89/2,472.07
  6. Step 6: Final answer
    x = 2,687.71

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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.