Home / 3,311.64-4,968.10-1,120.52

Finding the Fourth Proportional to 3,311.64, 4,968.10 and 1,120.52

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Solution

The fourth proportional to 3,311.64, 4,968.10 and 1,120.52 is: 1,681.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,311.64 : 4,968.10 = 1,120.52 : x
  2. Step 2: Convert to fraction form
    3,311.64/4,968.10 = 1,120.52/x
  3. Step 3: Cross multiply
    3,311.64x = 4,968.10 × 1,120.52
  4. Step 4: Simplify right side
    3,311.64x = 5,566,855.41
  5. Step 5: Solve for x
    x = 5,566,855.41/3,311.64
  6. Step 6: Final answer
    x = 1,681.00

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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.