Home / 4,791.60-7,187.40-2,912.40

Finding the Fourth Proportional to 4,791.60, 7,187.40 and 2,912.40

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Solution

The fourth proportional to 4,791.60, 7,187.40 and 2,912.40 is: 4,368.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,791.60 : 7,187.40 = 2,912.40 : x
  2. Step 2: Convert to fraction form
    4,791.60/7,187.40 = 2,912.40/x
  3. Step 3: Cross multiply
    4,791.60x = 7,187.40 × 2,912.40
  4. Step 4: Simplify right side
    4,791.60x = 20,932,583.76
  5. Step 5: Solve for x
    x = 20,932,583.76/4,791.60
  6. Step 6: Final answer
    x = 4,368.60

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1.5x scale

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.