Home / 7,582.78-11,374.76-3,425.12

Finding the Fourth Proportional to 7,582.78, 11,374.76 and 3,425.12

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Solution

The fourth proportional to 7,582.78, 11,374.76 and 3,425.12 is: 5,137.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,582.78 : 11,374.76 = 3,425.12 : x
  2. Step 2: Convert to fraction form
    7,582.78/11,374.76 = 3,425.12/x
  3. Step 3: Cross multiply
    7,582.78x = 11,374.76 × 3,425.12
  4. Step 4: Simplify right side
    7,582.78x = 38,959,912.32
  5. Step 5: Solve for x
    x = 38,959,912.32/7,582.78
  6. Step 6: Final answer
    x = 5,137.94

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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.