Home / 7,502.21-11,254.70-3,120.02

Finding the Fourth Proportional to 7,502.21, 11,254.70 and 3,120.02

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Solution

The fourth proportional to 7,502.21, 11,254.70 and 3,120.02 is: 4,680.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,502.21 : 11,254.70 = 3,120.02 : x
  2. Step 2: Convert to fraction form
    7,502.21/11,254.70 = 3,120.02/x
  3. Step 3: Cross multiply
    7,502.21x = 11,254.70 × 3,120.02
  4. Step 4: Simplify right side
    7,502.21x = 35,114,889.09
  5. Step 5: Solve for x
    x = 35,114,889.09/7,502.21
  6. Step 6: Final answer
    x = 4,680.61

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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.