Home / 5,349.12-7,382.16-3,486.12

Finding the Fourth Proportional to 5,349.12, 7,382.16 and 3,486.12

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Solution

The fourth proportional to 5,349.12, 7,382.16 and 3,486.12 is: 4,811.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,349.12 : 7,382.16 = 3,486.12 : x
  2. Step 2: Convert to fraction form
    5,349.12/7,382.16 = 3,486.12/x
  3. Step 3: Cross multiply
    5,349.12x = 7,382.16 × 3,486.12
  4. Step 4: Simplify right side
    5,349.12x = 25,735,095.62
  5. Step 5: Solve for x
    x = 25,735,095.62/5,349.12
  6. Step 6: Final answer
    x = 4,811.09

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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.