Home / 1,720.17-2,579.24-624.03

Finding the Fourth Proportional to 1,720.17, 2,579.24 and 624.03

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Solution

The fourth proportional to 1,720.17, 2,579.24 and 624.03 is: 935.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,720.17 : 2,579.24 = 624.03 : x
  2. Step 2: Convert to fraction form
    1,720.17/2,579.24 = 624.03/x
  3. Step 3: Cross multiply
    1,720.17x = 2,579.24 × 624.03
  4. Step 4: Simplify right side
    1,720.17x = 1,609,520.02
  5. Step 5: Solve for x
    x = 1,609,520.02/1,720.17
  6. Step 6: Final answer
    x = 935.67

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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.