Home / 5,349.19-7,382.05-2,991.32

Finding the Fourth Proportional to 5,349.19, 7,382.05 and 2,991.32

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Solution

The fourth proportional to 5,349.19, 7,382.05 and 2,991.32 is: 4,128.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,349.19 : 7,382.05 = 2,991.32 : x
  2. Step 2: Convert to fraction form
    5,349.19/7,382.05 = 2,991.32/x
  3. Step 3: Cross multiply
    5,349.19x = 7,382.05 × 2,991.32
  4. Step 4: Simplify right side
    5,349.19x = 22,082,084.78
  5. Step 5: Solve for x
    x = 22,082,084.78/5,349.19
  6. Step 6: Final answer
    x = 4,128.12

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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.