Home / 4,321.12-6,447.84-3,433.60

Finding the Fourth Proportional to 4,321.12, 6,447.84 and 3,433.60

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Solution

The fourth proportional to 4,321.12, 6,447.84 and 3,433.60 is: 5,123.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,321.12 : 6,447.84 = 3,433.60 : x
  2. Step 2: Convert to fraction form
    4,321.12/6,447.84 = 3,433.60/x
  3. Step 3: Cross multiply
    4,321.12x = 6,447.84 × 3,433.60
  4. Step 4: Simplify right side
    4,321.12x = 22,139,303.42
  5. Step 5: Solve for x
    x = 22,139,303.42/4,321.12
  6. Step 6: Final answer
    x = 5,123.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.