Home / 2,521.38-3,782.88-1,223.76

Finding the Fourth Proportional to 2,521.38, 3,782.88 and 1,223.76

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Solution

The fourth proportional to 2,521.38, 3,782.88 and 1,223.76 is: 1,836.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,521.38 : 3,782.88 = 1,223.76 : x
  2. Step 2: Convert to fraction form
    2,521.38/3,782.88 = 1,223.76/x
  3. Step 3: Cross multiply
    2,521.38x = 3,782.88 × 1,223.76
  4. Step 4: Simplify right side
    2,521.38x = 4,629,337.23
  5. Step 5: Solve for x
    x = 4,629,337.23/2,521.38
  6. Step 6: Final answer
    x = 1,836.03

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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.