Home / 7,641.72-11,465.48-3,941.60

Finding the Fourth Proportional to 7,641.72, 11,465.48 and 3,941.60

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Solution

The fourth proportional to 7,641.72, 11,465.48 and 3,941.60 is: 5,913.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,641.72 : 11,465.48 = 3,941.60 : x
  2. Step 2: Convert to fraction form
    7,641.72/11,465.48 = 3,941.60/x
  3. Step 3: Cross multiply
    7,641.72x = 11,465.48 × 3,941.60
  4. Step 4: Simplify right side
    7,641.72x = 45,192,288.49
  5. Step 5: Solve for x
    x = 45,192,288.49/7,641.72
  6. Step 6: Final answer
    x = 5,913.89

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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.