Home / 5,170.17-7,755.40-1,885.72

Finding the Fourth Proportional to 5,170.17, 7,755.40 and 1,885.72

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Solution

The fourth proportional to 5,170.17, 7,755.40 and 1,885.72 is: 2,828.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,170.17 : 7,755.40 = 1,885.72 : x
  2. Step 2: Convert to fraction form
    5,170.17/7,755.40 = 1,885.72/x
  3. Step 3: Cross multiply
    5,170.17x = 7,755.40 × 1,885.72
  4. Step 4: Simplify right side
    5,170.17x = 14,624,474.11
  5. Step 5: Solve for x
    x = 14,624,474.11/5,170.17
  6. Step 6: Final answer
    x = 2,828.63

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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.