Home / 5,521.64-7,619.95-3,003.80

Finding the Fourth Proportional to 5,521.64, 7,619.95 and 3,003.80

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Solution

The fourth proportional to 5,521.64, 7,619.95 and 3,003.80 is: 4,145.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,521.64 : 7,619.95 = 3,003.80 : x
  2. Step 2: Convert to fraction form
    5,521.64/7,619.95 = 3,003.80/x
  3. Step 3: Cross multiply
    5,521.64x = 7,619.95 × 3,003.80
  4. Step 4: Simplify right side
    5,521.64x = 22,888,752.69
  5. Step 5: Solve for x
    x = 22,888,752.69/5,521.64
  6. Step 6: Final answer
    x = 4,145.29

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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.