Home / 3,312.34-4,968.96-1,120.48

Finding the Fourth Proportional to 3,312.34, 4,968.96 and 1,120.48

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Solution

The fourth proportional to 3,312.34, 4,968.96 and 1,120.48 is: 1,680.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,312.34 : 4,968.96 = 1,120.48 : x
  2. Step 2: Convert to fraction form
    3,312.34/4,968.96 = 1,120.48/x
  3. Step 3: Cross multiply
    3,312.34x = 4,968.96 × 1,120.48
  4. Step 4: Simplify right side
    3,312.34x = 5,567,607.88
  5. Step 5: Solve for x
    x = 5,567,607.88/3,312.34
  6. Step 6: Final answer
    x = 1,680.87

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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.