Home / 5,172.48-7,758.72-1,885.62

Finding the Fourth Proportional to 5,172.48, 7,758.72 and 1,885.62

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Solution

The fourth proportional to 5,172.48, 7,758.72 and 1,885.62 is: 2,828.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,172.48 : 7,758.72 = 1,885.62 : x
  2. Step 2: Convert to fraction form
    5,172.48/7,758.72 = 1,885.62/x
  3. Step 3: Cross multiply
    5,172.48x = 7,758.72 × 1,885.62
  4. Step 4: Simplify right side
    5,172.48x = 14,629,997.61
  5. Step 5: Solve for x
    x = 14,629,997.61/5,172.48
  6. Step 6: Final answer
    x = 2,828.43

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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.