Home / 2,220.36-3,064.02-1,225.62

Finding the Fourth Proportional to 2,220.36, 3,064.02 and 1,225.62

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Solution

The fourth proportional to 2,220.36, 3,064.02 and 1,225.62 is: 1,691.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.36 : 3,064.02 = 1,225.62 : x
  2. Step 2: Convert to fraction form
    2,220.36/3,064.02 = 1,225.62/x
  3. Step 3: Cross multiply
    2,220.36x = 3,064.02 × 1,225.62
  4. Step 4: Simplify right side
    2,220.36x = 3,755,324.19
  5. Step 5: Solve for x
    x = 3,755,324.19/2,220.36
  6. Step 6: Final answer
    x = 1,691.31

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Double scale
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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.