Home / 2,220.08-3,331.48-834.40

Finding the Fourth Proportional to 2,220.08, 3,331.48 and 834.40

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Solution

The fourth proportional to 2,220.08, 3,331.48 and 834.40 is: 1,252.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.08 : 3,331.48 = 834.40 : x
  2. Step 2: Convert to fraction form
    2,220.08/3,331.48 = 834.40/x
  3. Step 3: Cross multiply
    2,220.08x = 3,331.48 × 834.40
  4. Step 4: Simplify right side
    2,220.08x = 2,779,786.91
  5. Step 5: Solve for x
    x = 2,779,786.91/2,220.08
  6. Step 6: Final answer
    x = 1,252.11

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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.