Home / 4,220.83-6,331.35-1,299.16

Finding the Fourth Proportional to 4,220.83, 6,331.35 and 1,299.16

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Solution

The fourth proportional to 4,220.83, 6,331.35 and 1,299.16 is: 1,948.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,220.83 : 6,331.35 = 1,299.16 : x
  2. Step 2: Convert to fraction form
    4,220.83/6,331.35 = 1,299.16/x
  3. Step 3: Cross multiply
    4,220.83x = 6,331.35 × 1,299.16
  4. Step 4: Simplify right side
    4,220.83x = 8,225,436.67
  5. Step 5: Solve for x
    x = 8,225,436.67/4,220.83
  6. Step 6: Final answer
    x = 1,948.77

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.