Home / 7,229.20-9,975.06-4,085.32

Finding the Fourth Proportional to 7,229.20, 9,975.06 and 4,085.32

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Solution

The fourth proportional to 7,229.20, 9,975.06 and 4,085.32 is: 5,637.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,229.20 : 9,975.06 = 4,085.32 : x
  2. Step 2: Convert to fraction form
    7,229.20/9,975.06 = 4,085.32/x
  3. Step 3: Cross multiply
    7,229.20x = 9,975.06 × 4,085.32
  4. Step 4: Simplify right side
    7,229.20x = 40,751,312.12
  5. Step 5: Solve for x
    x = 40,751,312.12/7,229.20
  6. Step 6: Final answer
    x = 5,637.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.