Home / 2,420.12-3,355.36-2,372.60

Finding the Fourth Proportional to 2,420.12, 3,355.36 and 2,372.60

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Solution

The fourth proportional to 2,420.12, 3,355.36 and 2,372.60 is: 3,289.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,420.12 : 3,355.36 = 2,372.60 : x
  2. Step 2: Convert to fraction form
    2,420.12/3,355.36 = 2,372.60/x
  3. Step 3: Cross multiply
    2,420.12x = 3,355.36 × 2,372.60
  4. Step 4: Simplify right side
    2,420.12x = 7,960,927.14
  5. Step 5: Solve for x
    x = 7,960,927.14/2,420.12
  6. Step 6: Final answer
    x = 3,289.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.