Home / 3,419.83-5,130.00-1,228.58

Finding the Fourth Proportional to 3,419.83, 5,130.00 and 1,228.58

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Solution

The fourth proportional to 3,419.83, 5,130.00 and 1,228.58 is: 1,842.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,419.83 : 5,130.00 = 1,228.58 : x
  2. Step 2: Convert to fraction form
    3,419.83/5,130.00 = 1,228.58/x
  3. Step 3: Cross multiply
    3,419.83x = 5,130.00 × 1,228.58
  4. Step 4: Simplify right side
    3,419.83x = 6,302,583.61
  5. Step 5: Solve for x
    x = 6,302,583.61/3,419.83
  6. Step 6: Final answer
    x = 1,842.95

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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.