Home / 3,419.31-5,130.95-1,859.25

Finding the Fourth Proportional to 3,419.31, 5,130.95 and 1,859.25

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Solution

The fourth proportional to 3,419.31, 5,130.95 and 1,859.25 is: 2,789.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,419.31 : 5,130.95 = 1,859.25 : x
  2. Step 2: Convert to fraction form
    3,419.31/5,130.95 = 1,859.25/x
  3. Step 3: Cross multiply
    3,419.31x = 5,130.95 × 1,859.25
  4. Step 4: Simplify right side
    3,419.31x = 9,539,728.73
  5. Step 5: Solve for x
    x = 9,539,728.73/3,419.31
  6. Step 6: Final answer
    x = 2,789.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.