Home / 4,220.72-6,304.76-3,127.22

Finding the Fourth Proportional to 4,220.72, 6,304.76 and 3,127.22

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Solution

The fourth proportional to 4,220.72, 6,304.76 and 3,127.22 is: 4,671.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,220.72 : 6,304.76 = 3,127.22 : x
  2. Step 2: Convert to fraction form
    4,220.72/6,304.76 = 3,127.22/x
  3. Step 3: Cross multiply
    4,220.72x = 6,304.76 × 3,127.22
  4. Step 4: Simplify right side
    4,220.72x = 19,716,371.57
  5. Step 5: Solve for x
    x = 19,716,371.57/4,220.72
  6. Step 6: Final answer
    x = 4,671.33

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Half scale
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Double scale
Find fourth proportional to 4,221.72, 6,306.25 and 3,128.22
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.