Home / 2,921.67-4,026.51-2,174.45

Finding the Fourth Proportional to 2,921.67, 4,026.51 and 2,174.45

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Solution

The fourth proportional to 2,921.67, 4,026.51 and 2,174.45 is: 2,996.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.67 : 4,026.51 = 2,174.45 : x
  2. Step 2: Convert to fraction form
    2,921.67/4,026.51 = 2,174.45/x
  3. Step 3: Cross multiply
    2,921.67x = 4,026.51 × 2,174.45
  4. Step 4: Simplify right side
    2,921.67x = 8,755,424.54
  5. Step 5: Solve for x
    x = 8,755,424.54/2,921.67
  6. Step 6: Final answer
    x = 2,996.72

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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.