Home / 7,499.25-11,242.80-3,119.99

Finding the Fourth Proportional to 7,499.25, 11,242.80 and 3,119.99

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Solution

The fourth proportional to 7,499.25, 11,242.80 and 3,119.99 is: 4,677.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,499.25 : 11,242.80 = 3,119.99 : x
  2. Step 2: Convert to fraction form
    7,499.25/11,242.80 = 3,119.99/x
  3. Step 3: Cross multiply
    7,499.25x = 11,242.80 × 3,119.99
  4. Step 4: Simplify right side
    7,499.25x = 35,077,367.36
  5. Step 5: Solve for x
    x = 35,077,367.36/7,499.25
  6. Step 6: Final answer
    x = 4,677.45

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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.