Home / 3,369.60-4,639.68-3,177.36

Finding the Fourth Proportional to 3,369.60, 4,639.68 and 3,177.36

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Solution

The fourth proportional to 3,369.60, 4,639.68 and 3,177.36 is: 4,374.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,369.60 : 4,639.68 = 3,177.36 : x
  2. Step 2: Convert to fraction form
    3,369.60/4,639.68 = 3,177.36/x
  3. Step 3: Cross multiply
    3,369.60x = 4,639.68 × 3,177.36
  4. Step 4: Simplify right side
    3,369.60x = 14,741,933.64
  5. Step 5: Solve for x
    x = 14,741,933.64/3,369.60
  6. Step 6: Final answer
    x = 4,374.98

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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.