Home / 1,600.14-2,399.70-612.91

Finding the Fourth Proportional to 1,600.14, 2,399.70 and 612.91

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Solution

The fourth proportional to 1,600.14, 2,399.70 and 612.91 is: 919.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,600.14 : 2,399.70 = 612.91 : x
  2. Step 2: Convert to fraction form
    1,600.14/2,399.70 = 612.91/x
  3. Step 3: Cross multiply
    1,600.14x = 2,399.70 × 612.91
  4. Step 4: Simplify right side
    1,600.14x = 1,470,788.44
  5. Step 5: Solve for x
    x = 1,470,788.44/1,600.14
  6. Step 6: Final answer
    x = 919.16

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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.