Home / 3,247.75-4,484.30-1,990.52

Finding the Fourth Proportional to 3,247.75, 4,484.30 and 1,990.52

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Solution

The fourth proportional to 3,247.75, 4,484.30 and 1,990.52 is: 2,748.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,247.75 : 4,484.30 = 1,990.52 : x
  2. Step 2: Convert to fraction form
    3,247.75/4,484.30 = 1,990.52/x
  3. Step 3: Cross multiply
    3,247.75x = 4,484.30 × 1,990.52
  4. Step 4: Simplify right side
    3,247.75x = 8,926,088.84
  5. Step 5: Solve for x
    x = 8,926,088.84/3,247.75
  6. Step 6: Final answer
    x = 2,748.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.