Home / 3,421.32-4,723.02-2,163.12

Finding the Fourth Proportional to 3,421.32, 4,723.02 and 2,163.12

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Solution

The fourth proportional to 3,421.32, 4,723.02 and 2,163.12 is: 2,986.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,421.32 : 4,723.02 = 2,163.12 : x
  2. Step 2: Convert to fraction form
    3,421.32/4,723.02 = 2,163.12/x
  3. Step 3: Cross multiply
    3,421.32x = 4,723.02 × 2,163.12
  4. Step 4: Simplify right side
    3,421.32x = 10,216,459.02
  5. Step 5: Solve for x
    x = 10,216,459.02/3,421.32
  6. Step 6: Final answer
    x = 2,986.12

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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.