Home / 2,897.18-3,999.66-2,266.37

Finding the Fourth Proportional to 2,897.18, 3,999.66 and 2,266.37

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Solution

The fourth proportional to 2,897.18, 3,999.66 and 2,266.37 is: 3,128.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,897.18 : 3,999.66 = 2,266.37 : x
  2. Step 2: Convert to fraction form
    2,897.18/3,999.66 = 2,266.37/x
  3. Step 3: Cross multiply
    2,897.18x = 3,999.66 × 2,266.37
  4. Step 4: Simplify right side
    2,897.18x = 9,064,727.93
  5. Step 5: Solve for x
    x = 9,064,727.93/2,897.18
  6. Step 6: Final answer
    x = 3,128.81

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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.