Home / 2,782.38-4,175.01-1,223.48

Finding the Fourth Proportional to 2,782.38, 4,175.01 and 1,223.48

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Solution

The fourth proportional to 2,782.38, 4,175.01 and 1,223.48 is: 1,835.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,782.38 : 4,175.01 = 1,223.48 : x
  2. Step 2: Convert to fraction form
    2,782.38/4,175.01 = 1,223.48/x
  3. Step 3: Cross multiply
    2,782.38x = 4,175.01 × 1,223.48
  4. Step 4: Simplify right side
    2,782.38x = 5,108,041.23
  5. Step 5: Solve for x
    x = 5,108,041.23/2,782.38
  6. Step 6: Final answer
    x = 1,835.85

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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.