Home / 5,382.51-7,427.81-2,992.42

Finding the Fourth Proportional to 5,382.51, 7,427.81 and 2,992.42

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Solution

The fourth proportional to 5,382.51, 7,427.81 and 2,992.42 is: 4,129.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,382.51 : 7,427.81 = 2,992.42 : x
  2. Step 2: Convert to fraction form
    5,382.51/7,427.81 = 2,992.42/x
  3. Step 3: Cross multiply
    5,382.51x = 7,427.81 × 2,992.42
  4. Step 4: Simplify right side
    5,382.51x = 22,227,127.20
  5. Step 5: Solve for x
    x = 22,227,127.20/5,382.51
  6. Step 6: Final answer
    x = 4,129.51

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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.