Home / 3,110-4,648.48-2,559.20

Finding the Fourth Proportional to 3,110, 4,648.48 and 2,559.20

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Solution

The fourth proportional to 3,110, 4,648.48 and 2,559.20 is: 3,825.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,110 : 4,648.48 = 2,559.20 : x
  2. Step 2: Convert to fraction form
    3,110/4,648.48 = 2,559.20/x
  3. Step 3: Cross multiply
    3,110x = 4,648.48 × 2,559.20
  4. Step 4: Simplify right side
    3,110x = 11,896,390.02
  5. Step 5: Solve for x
    x = 11,896,390.02/3,110
  6. Step 6: Final answer
    x = 3,825.21

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.