Home / 6,885.20-10,327.80-4,289.60

Finding the Fourth Proportional to 6,885.20, 10,327.80 and 4,289.60

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Solution

The fourth proportional to 6,885.20, 10,327.80 and 4,289.60 is: 6,434.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,885.20 : 10,327.80 = 4,289.60 : x
  2. Step 2: Convert to fraction form
    6,885.20/10,327.80 = 4,289.60/x
  3. Step 3: Cross multiply
    6,885.20x = 10,327.80 × 4,289.60
  4. Step 4: Simplify right side
    6,885.20x = 44,302,130.88
  5. Step 5: Solve for x
    x = 44,302,130.88/6,885.20
  6. Step 6: Final answer
    x = 6,434.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.