Home / 2,225.88-3,071.77-1,231.25

Finding the Fourth Proportional to 2,225.88, 3,071.77 and 1,231.25

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Solution

The fourth proportional to 2,225.88, 3,071.77 and 1,231.25 is: 1,699.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,225.88 : 3,071.77 = 1,231.25 : x
  2. Step 2: Convert to fraction form
    2,225.88/3,071.77 = 1,231.25/x
  3. Step 3: Cross multiply
    2,225.88x = 3,071.77 × 1,231.25
  4. Step 4: Simplify right side
    2,225.88x = 3,782,102.99
  5. Step 5: Solve for x
    x = 3,782,102.99/2,225.88
  6. Step 6: Final answer
    x = 1,699.15

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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.