Home / 2,220.01-3,063.62-1,225.29

Finding the Fourth Proportional to 2,220.01, 3,063.62 and 1,225.29

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Solution

The fourth proportional to 2,220.01, 3,063.62 and 1,225.29 is: 1,690.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.01 : 3,063.62 = 1,225.29 : x
  2. Step 2: Convert to fraction form
    2,220.01/3,063.62 = 1,225.29/x
  3. Step 3: Cross multiply
    2,220.01x = 3,063.62 × 1,225.29
  4. Step 4: Simplify right side
    2,220.01x = 3,753,837.50
  5. Step 5: Solve for x
    x = 3,753,837.50/2,220.01
  6. Step 6: Final answer
    x = 1,690.91

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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.