Home / 2,893.21-3,999.19-2,663.57

Finding the Fourth Proportional to 2,893.21, 3,999.19 and 2,663.57

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Solution

The fourth proportional to 2,893.21, 3,999.19 and 2,663.57 is: 3,681.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,893.21 : 3,999.19 = 2,663.57 : x
  2. Step 2: Convert to fraction form
    2,893.21/3,999.19 = 2,663.57/x
  3. Step 3: Cross multiply
    2,893.21x = 3,999.19 × 2,663.57
  4. Step 4: Simplify right side
    2,893.21x = 10,652,122.51
  5. Step 5: Solve for x
    x = 10,652,122.51/2,893.21
  6. Step 6: Final answer
    x = 3,681.77

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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.