Home / 1,720.18-2,579.98-624.26

Finding the Fourth Proportional to 1,720.18, 2,579.98 and 624.26

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Solution

The fourth proportional to 1,720.18, 2,579.98 and 624.26 is: 936.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,720.18 : 2,579.98 = 624.26 : x
  2. Step 2: Convert to fraction form
    1,720.18/2,579.98 = 624.26/x
  3. Step 3: Cross multiply
    1,720.18x = 2,579.98 × 624.26
  4. Step 4: Simplify right side
    1,720.18x = 1,610,578.31
  5. Step 5: Solve for x
    x = 1,610,578.31/1,720.18
  6. Step 6: Final answer
    x = 936.28

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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.