Home / 1,772.42-2,660.00-1,225.40

Finding the Fourth Proportional to 1,772.42, 2,660.00 and 1,225.40

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Solution

The fourth proportional to 1,772.42, 2,660.00 and 1,225.40 is: 1,839.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,772.42 : 2,660.00 = 1,225.40 : x
  2. Step 2: Convert to fraction form
    1,772.42/2,660.00 = 1,225.40/x
  3. Step 3: Cross multiply
    1,772.42x = 2,660.00 × 1,225.40
  4. Step 4: Simplify right side
    1,772.42x = 3,259,544.57
  5. Step 5: Solve for x
    x = 3,259,544.57/1,772.42
  6. Step 6: Final answer
    x = 1,839.04

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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.