Home / 4,287.48-6,420.72-3,871.96

Finding the Fourth Proportional to 4,287.48, 6,420.72 and 3,871.96

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Solution

The fourth proportional to 4,287.48, 6,420.72 and 3,871.96 is: 5,798.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,287.48 : 6,420.72 = 3,871.96 : x
  2. Step 2: Convert to fraction form
    4,287.48/6,420.72 = 3,871.96/x
  3. Step 3: Cross multiply
    4,287.48x = 6,420.72 × 3,871.96
  4. Step 4: Simplify right side
    4,287.48x = 24,860,771.01
  5. Step 5: Solve for x
    x = 24,860,771.01/4,287.48
  6. Step 6: Final answer
    x = 5,798.46

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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.