Home / 7,502.83-11,255.69-3,120.19

Finding the Fourth Proportional to 7,502.83, 11,255.69 and 3,120.19

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Solution

The fourth proportional to 7,502.83, 11,255.69 and 3,120.19 is: 4,680.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,502.83 : 11,255.69 = 3,120.19 : x
  2. Step 2: Convert to fraction form
    7,502.83/11,255.69 = 3,120.19/x
  3. Step 3: Cross multiply
    7,502.83x = 11,255.69 × 3,120.19
  4. Step 4: Simplify right side
    7,502.83x = 35,119,871.04
  5. Step 5: Solve for x
    x = 35,119,871.04/7,502.83
  6. Step 6: Final answer
    x = 4,680.88

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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.