Home / 2,420.91-3,624.48-2,190.24

Finding the Fourth Proportional to 2,420.91, 3,624.48 and 2,190.24

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Solution

The fourth proportional to 2,420.91, 3,624.48 and 2,190.24 is: 3,279.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,420.91 : 3,624.48 = 2,190.24 : x
  2. Step 2: Convert to fraction form
    2,420.91/3,624.48 = 2,190.24/x
  3. Step 3: Cross multiply
    2,420.91x = 3,624.48 × 2,190.24
  4. Step 4: Simplify right side
    2,420.91x = 7,938,481.08
  5. Step 5: Solve for x
    x = 7,938,481.08/2,420.91
  6. Step 6: Final answer
    x = 3,279.13

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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.