Home / 4,139.13-6,209.73-1,217.43

Finding the Fourth Proportional to 4,139.13, 6,209.73 and 1,217.43

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Solution

The fourth proportional to 4,139.13, 6,209.73 and 1,217.43 is: 1,826.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,139.13 : 6,209.73 = 1,217.43 : x
  2. Step 2: Convert to fraction form
    4,139.13/6,209.73 = 1,217.43/x
  3. Step 3: Cross multiply
    4,139.13x = 6,209.73 × 1,217.43
  4. Step 4: Simplify right side
    4,139.13x = 7,559,911.59
  5. Step 5: Solve for x
    x = 7,559,911.59/4,139.13
  6. Step 6: Final answer
    x = 1,826.45

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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.