Home / 2,420.90-3,342.01-1,623.93

Finding the Fourth Proportional to 2,420.90, 3,342.01 and 1,623.93

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Solution

The fourth proportional to 2,420.90, 3,342.01 and 1,623.93 is: 2,241.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,420.90 : 3,342.01 = 1,623.93 : x
  2. Step 2: Convert to fraction form
    2,420.90/3,342.01 = 1,623.93/x
  3. Step 3: Cross multiply
    2,420.90x = 3,342.01 × 1,623.93
  4. Step 4: Simplify right side
    2,420.90x = 5,427,190.30
  5. Step 5: Solve for x
    x = 5,427,190.30/2,420.90
  6. Step 6: Final answer
    x = 2,241.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.