Home / 2,921.02-4,029.24-1,871.26

Finding the Fourth Proportional to 2,921.02, 4,029.24 and 1,871.26

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Solution

The fourth proportional to 2,921.02, 4,029.24 and 1,871.26 is: 2,581.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.02 : 4,029.24 = 1,871.26 : x
  2. Step 2: Convert to fraction form
    2,921.02/4,029.24 = 1,871.26/x
  3. Step 3: Cross multiply
    2,921.02x = 4,029.24 × 1,871.26
  4. Step 4: Simplify right side
    2,921.02x = 7,539,755.64
  5. Step 5: Solve for x
    x = 7,539,755.64/2,921.02
  6. Step 6: Final answer
    x = 2,581.21

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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.