Home / 2,220.30-3,064.01-1,225.58

Finding the Fourth Proportional to 2,220.30, 3,064.01 and 1,225.58

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Solution

The fourth proportional to 2,220.30, 3,064.01 and 1,225.58 is: 1,691.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.30 : 3,064.01 = 1,225.58 : x
  2. Step 2: Convert to fraction form
    2,220.30/3,064.01 = 1,225.58/x
  3. Step 3: Cross multiply
    2,220.30x = 3,064.01 × 1,225.58
  4. Step 4: Simplify right side
    2,220.30x = 3,755,167.93
  5. Step 5: Solve for x
    x = 3,755,167.93/2,220.30
  6. Step 6: Final answer
    x = 1,691.29

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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.