Home / 5,103.60-7,652.70-2,178.60

Finding the Fourth Proportional to 5,103.60, 7,652.70 and 2,178.60

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Solution

The fourth proportional to 5,103.60, 7,652.70 and 2,178.60 is: 3,266.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,103.60 : 7,652.70 = 2,178.60 : x
  2. Step 2: Convert to fraction form
    5,103.60/7,652.70 = 2,178.60/x
  3. Step 3: Cross multiply
    5,103.60x = 7,652.70 × 2,178.60
  4. Step 4: Simplify right side
    5,103.60x = 16,672,172.22
  5. Step 5: Solve for x
    x = 16,672,172.22/5,103.60
  6. Step 6: Final answer
    x = 3,266.75

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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.