Home / 7,942.40-11,913.60-3,010.40

Finding the Fourth Proportional to 7,942.40, 11,913.60 and 3,010.40

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Solution

The fourth proportional to 7,942.40, 11,913.60 and 3,010.40 is: 4,515.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,942.40 : 11,913.60 = 3,010.40 : x
  2. Step 2: Convert to fraction form
    7,942.40/11,913.60 = 3,010.40/x
  3. Step 3: Cross multiply
    7,942.40x = 11,913.60 × 3,010.40
  4. Step 4: Simplify right side
    7,942.40x = 35,864,701.44
  5. Step 5: Solve for x
    x = 35,864,701.44/7,942.40
  6. Step 6: Final answer
    x = 4,515.60

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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.