Home / 3,213.23-4,825.08-1,988.44

Finding the Fourth Proportional to 3,213.23, 4,825.08 and 1,988.44

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Solution

The fourth proportional to 3,213.23, 4,825.08 and 1,988.44 is: 2,985.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,213.23 : 4,825.08 = 1,988.44 : x
  2. Step 2: Convert to fraction form
    3,213.23/4,825.08 = 1,988.44/x
  3. Step 3: Cross multiply
    3,213.23x = 4,825.08 × 1,988.44
  4. Step 4: Simplify right side
    3,213.23x = 9,594,389.17
  5. Step 5: Solve for x
    x = 9,594,389.17/3,213.23
  6. Step 6: Final answer
    x = 2,985.90

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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.