Home / 5,521.57-7,619.80-3,003.71

Finding the Fourth Proportional to 5,521.57, 7,619.80 and 3,003.71

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Solution

The fourth proportional to 5,521.57, 7,619.80 and 3,003.71 is: 4,145.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,521.57 : 7,619.80 = 3,003.71 : x
  2. Step 2: Convert to fraction form
    5,521.57/7,619.80 = 3,003.71/x
  3. Step 3: Cross multiply
    5,521.57x = 7,619.80 × 3,003.71
  4. Step 4: Simplify right side
    5,521.57x = 22,887,623.85
  5. Step 5: Solve for x
    x = 22,887,623.85/5,521.57
  6. Step 6: Final answer
    x = 4,145.13

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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.