Home / 3,428.95-5,140.35-1,237.17

Finding the Fourth Proportional to 3,428.95, 5,140.35 and 1,237.17

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Solution

The fourth proportional to 3,428.95, 5,140.35 and 1,237.17 is: 1,854.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.95 : 5,140.35 = 1,237.17 : x
  2. Step 2: Convert to fraction form
    3,428.95/5,140.35 = 1,237.17/x
  3. Step 3: Cross multiply
    3,428.95x = 5,140.35 × 1,237.17
  4. Step 4: Simplify right side
    3,428.95x = 6,359,480.62
  5. Step 5: Solve for x
    x = 6,359,480.62/3,428.95
  6. Step 6: Final answer
    x = 1,854.64

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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.