Home / 7,504.90-11,261.40-3,122.80

Finding the Fourth Proportional to 7,504.90, 11,261.40 and 3,122.80

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Solution

The fourth proportional to 7,504.90, 11,261.40 and 3,122.80 is: 4,685.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,504.90 : 11,261.40 = 3,122.80 : x
  2. Step 2: Convert to fraction form
    7,504.90/11,261.40 = 3,122.80/x
  3. Step 3: Cross multiply
    7,504.90x = 11,261.40 × 3,122.80
  4. Step 4: Simplify right side
    7,504.90x = 35,167,099.92
  5. Step 5: Solve for x
    x = 35,167,099.92/7,504.90
  6. Step 6: Final answer
    x = 4,685.89

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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.