Home / 6,439.28-8,885.96-3,606.64

Finding the Fourth Proportional to 6,439.28, 8,885.96 and 3,606.64

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Solution

The fourth proportional to 6,439.28, 8,885.96 and 3,606.64 is: 4,977.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,439.28 : 8,885.96 = 3,606.64 : x
  2. Step 2: Convert to fraction form
    6,439.28/8,885.96 = 3,606.64/x
  3. Step 3: Cross multiply
    6,439.28x = 8,885.96 × 3,606.64
  4. Step 4: Simplify right side
    6,439.28x = 32,048,458.77
  5. Step 5: Solve for x
    x = 32,048,458.77/6,439.28
  6. Step 6: Final answer
    x = 4,977.03

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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.