Home / 7,122.06-10,684.80-3,225.60

Finding the Fourth Proportional to 7,122.06, 10,684.80 and 3,225.60

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Solution

The fourth proportional to 7,122.06, 10,684.80 and 3,225.60 is: 4,839.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,122.06 : 10,684.80 = 3,225.60 : x
  2. Step 2: Convert to fraction form
    7,122.06/10,684.80 = 3,225.60/x
  3. Step 3: Cross multiply
    7,122.06x = 10,684.80 × 3,225.60
  4. Step 4: Simplify right side
    7,122.06x = 34,464,890.88
  5. Step 5: Solve for x
    x = 34,464,890.88/7,122.06
  6. Step 6: Final answer
    x = 4,839.17

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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.