Home / 7,420.94-11,128.14-2,225.60

Finding the Fourth Proportional to 7,420.94, 11,128.14 and 2,225.60

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Solution

The fourth proportional to 7,420.94, 11,128.14 and 2,225.60 is: 3,337.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,420.94 : 11,128.14 = 2,225.60 : x
  2. Step 2: Convert to fraction form
    7,420.94/11,128.14 = 2,225.60/x
  3. Step 3: Cross multiply
    7,420.94x = 11,128.14 × 2,225.60
  4. Step 4: Simplify right side
    7,420.94x = 24,766,732.74
  5. Step 5: Solve for x
    x = 24,766,732.74/7,420.94
  6. Step 6: Final answer
    x = 3,337.41

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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.