Home / 2,147.23-3,220.63-587.37

Finding the Fourth Proportional to 2,147.23, 3,220.63 and 587.37

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Solution

The fourth proportional to 2,147.23, 3,220.63 and 587.37 is: 880.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,147.23 : 3,220.63 = 587.37 : x
  2. Step 2: Convert to fraction form
    2,147.23/3,220.63 = 587.37/x
  3. Step 3: Cross multiply
    2,147.23x = 3,220.63 × 587.37
  4. Step 4: Simplify right side
    2,147.23x = 1,891,698.51
  5. Step 5: Solve for x
    x = 1,891,698.51/2,147.23
  6. Step 6: Final answer
    x = 880.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.