Home / 7,382.85-10,189.20-4,197.12

Finding the Fourth Proportional to 7,382.85, 10,189.20 and 4,197.12

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Solution

The fourth proportional to 7,382.85, 10,189.20 and 4,197.12 is: 5,792.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,382.85 : 10,189.20 = 4,197.12 : x
  2. Step 2: Convert to fraction form
    7,382.85/10,189.20 = 4,197.12/x
  3. Step 3: Cross multiply
    7,382.85x = 10,189.20 × 4,197.12
  4. Step 4: Simplify right side
    7,382.85x = 42,765,295.10
  5. Step 5: Solve for x
    x = 42,765,295.10/7,382.85
  6. Step 6: Final answer
    x = 5,792.52

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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.