Home / 6,281.42-9,420.48-2,987.96

Finding the Fourth Proportional to 6,281.42, 9,420.48 and 2,987.96

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Solution

The fourth proportional to 6,281.42, 9,420.48 and 2,987.96 is: 4,481.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,281.42 : 9,420.48 = 2,987.96 : x
  2. Step 2: Convert to fraction form
    6,281.42/9,420.48 = 2,987.96/x
  3. Step 3: Cross multiply
    6,281.42x = 9,420.48 × 2,987.96
  4. Step 4: Simplify right side
    6,281.42x = 28,148,017.42
  5. Step 5: Solve for x
    x = 28,148,017.42/6,281.42
  6. Step 6: Final answer
    x = 4,481.16

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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.