Home / 5,574.32-7,691.30-3,782.05

Finding the Fourth Proportional to 5,574.32, 7,691.30 and 3,782.05

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Solution

The fourth proportional to 5,574.32, 7,691.30 and 3,782.05 is: 5,218.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,574.32 : 7,691.30 = 3,782.05 : x
  2. Step 2: Convert to fraction form
    5,574.32/7,691.30 = 3,782.05/x
  3. Step 3: Cross multiply
    5,574.32x = 7,691.30 × 3,782.05
  4. Step 4: Simplify right side
    5,574.32x = 29,088,871.39
  5. Step 5: Solve for x
    x = 29,088,871.39/5,574.32
  6. Step 6: Final answer
    x = 5,218.37

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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.