Home / 7,420.90-11,133.32-3,261.84

Finding the Fourth Proportional to 7,420.90, 11,133.32 and 3,261.84

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Solution

The fourth proportional to 7,420.90, 11,133.32 and 3,261.84 is: 4,893.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,420.90 : 11,133.32 = 3,261.84 : x
  2. Step 2: Convert to fraction form
    7,420.90/11,133.32 = 3,261.84/x
  3. Step 3: Cross multiply
    7,420.90x = 11,133.32 × 3,261.84
  4. Step 4: Simplify right side
    7,420.90x = 36,315,108.51
  5. Step 5: Solve for x
    x = 36,315,108.51/7,420.90
  6. Step 6: Final answer
    x = 4,893.63

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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.