Home / 5,349.64-7,382.10-2,991.34

Finding the Fourth Proportional to 5,349.64, 7,382.10 and 2,991.34

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Solution

The fourth proportional to 5,349.64, 7,382.10 and 2,991.34 is: 4,127.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,349.64 : 7,382.10 = 2,991.34 : x
  2. Step 2: Convert to fraction form
    5,349.64/7,382.10 = 2,991.34/x
  3. Step 3: Cross multiply
    5,349.64x = 7,382.10 × 2,991.34
  4. Step 4: Simplify right side
    5,349.64x = 22,082,371.01
  5. Step 5: Solve for x
    x = 22,082,371.01/5,349.64
  6. Step 6: Final answer
    x = 4,127.82

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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.