Home / 6,139.77-9,214.30-4,921.89

Finding the Fourth Proportional to 6,139.77, 9,214.30 and 4,921.89

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Solution

The fourth proportional to 6,139.77, 9,214.30 and 4,921.89 is: 7,386.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,139.77 : 9,214.30 = 4,921.89 : x
  2. Step 2: Convert to fraction form
    6,139.77/9,214.30 = 4,921.89/x
  3. Step 3: Cross multiply
    6,139.77x = 9,214.30 × 4,921.89
  4. Step 4: Simplify right side
    6,139.77x = 45,351,771.03
  5. Step 5: Solve for x
    x = 45,351,771.03/6,139.77
  6. Step 6: Final answer
    x = 7,386.56

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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.