Home / 3,326.80-4,990.52-1,247.44

Finding the Fourth Proportional to 3,326.80, 4,990.52 and 1,247.44

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Solution

The fourth proportional to 3,326.80, 4,990.52 and 1,247.44 is: 1,871.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,326.80 : 4,990.52 = 1,247.44 : x
  2. Step 2: Convert to fraction form
    3,326.80/4,990.52 = 1,247.44/x
  3. Step 3: Cross multiply
    3,326.80x = 4,990.52 × 1,247.44
  4. Step 4: Simplify right side
    3,326.80x = 6,225,374.27
  5. Step 5: Solve for x
    x = 6,225,374.27/3,326.80
  6. Step 6: Final answer
    x = 1,871.28

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1.5x scale

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.