Home / 3,421.90-4,724.25-2,245.02

Finding the Fourth Proportional to 3,421.90, 4,724.25 and 2,245.02

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Solution

The fourth proportional to 3,421.90, 4,724.25 and 2,245.02 is: 3,099.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,421.90 : 4,724.25 = 2,245.02 : x
  2. Step 2: Convert to fraction form
    3,421.90/4,724.25 = 2,245.02/x
  3. Step 3: Cross multiply
    3,421.90x = 4,724.25 × 2,245.02
  4. Step 4: Simplify right side
    3,421.90x = 10,606,035.74
  5. Step 5: Solve for x
    x = 10,606,035.74/3,421.90
  6. Step 6: Final answer
    x = 3,099.46

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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.