Home / 3,255.72-4,491.36-3,130.02

Finding the Fourth Proportional to 3,255.72, 4,491.36 and 3,130.02

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Solution

The fourth proportional to 3,255.72, 4,491.36 and 3,130.02 is: 4,317.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,255.72 : 4,491.36 = 3,130.02 : x
  2. Step 2: Convert to fraction form
    3,255.72/4,491.36 = 3,130.02/x
  3. Step 3: Cross multiply
    3,255.72x = 4,491.36 × 3,130.02
  4. Step 4: Simplify right side
    3,255.72x = 14,058,046.63
  5. Step 5: Solve for x
    x = 14,058,046.63/3,255.72
  6. Step 6: Final answer
    x = 4,317.95

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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.