Home / 2,617.68-3,923.40-1,153.80

Finding the Fourth Proportional to 2,617.68, 3,923.40 and 1,153.80

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Solution

The fourth proportional to 2,617.68, 3,923.40 and 1,153.80 is: 1,729.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,617.68 : 3,923.40 = 1,153.80 : x
  2. Step 2: Convert to fraction form
    2,617.68/3,923.40 = 1,153.80/x
  3. Step 3: Cross multiply
    2,617.68x = 3,923.40 × 1,153.80
  4. Step 4: Simplify right side
    2,617.68x = 4,526,818.92
  5. Step 5: Solve for x
    x = 4,526,818.92/2,617.68
  6. Step 6: Final answer
    x = 1,729.32

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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.