Home / 1,629.96-2,445.84-655.80

Finding the Fourth Proportional to 1,629.96, 2,445.84 and 655.80

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Solution

The fourth proportional to 1,629.96, 2,445.84 and 655.80 is: 984.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,629.96 : 2,445.84 = 655.80 : x
  2. Step 2: Convert to fraction form
    1,629.96/2,445.84 = 655.80/x
  3. Step 3: Cross multiply
    1,629.96x = 2,445.84 × 655.80
  4. Step 4: Simplify right side
    1,629.96x = 1,603,981.87
  5. Step 5: Solve for x
    x = 1,603,981.87/1,629.96
  6. Step 6: Final answer
    x = 984.06

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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.