Home / 2,911.60-4,365.48-1,178.48

Finding the Fourth Proportional to 2,911.60, 4,365.48 and 1,178.48

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Solution

The fourth proportional to 2,911.60, 4,365.48 and 1,178.48 is: 1,766.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,911.60 : 4,365.48 = 1,178.48 : x
  2. Step 2: Convert to fraction form
    2,911.60/4,365.48 = 1,178.48/x
  3. Step 3: Cross multiply
    2,911.60x = 4,365.48 × 1,178.48
  4. Step 4: Simplify right side
    2,911.60x = 5,144,630.87
  5. Step 5: Solve for x
    x = 5,144,630.87/2,911.60
  6. Step 6: Final answer
    x = 1,766.94

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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.