Home / 5,349.11-7,381.77-2,991.25

Finding the Fourth Proportional to 5,349.11, 7,381.77 and 2,991.25

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Solution

The fourth proportional to 5,349.11, 7,381.77 and 2,991.25 is: 4,127.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,349.11 : 7,381.77 = 2,991.25 : x
  2. Step 2: Convert to fraction form
    5,349.11/7,381.77 = 2,991.25/x
  3. Step 3: Cross multiply
    5,349.11x = 7,381.77 × 2,991.25
  4. Step 4: Simplify right side
    5,349.11x = 22,080,719.51
  5. Step 5: Solve for x
    x = 22,080,719.51/5,349.11
  6. Step 6: Final answer
    x = 4,127.92

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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.