Home / 2,782.07-3,839.12-1,522.90

Finding the Fourth Proportional to 2,782.07, 3,839.12 and 1,522.90

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Solution

The fourth proportional to 2,782.07, 3,839.12 and 1,522.90 is: 2,101.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,782.07 : 3,839.12 = 1,522.90 : x
  2. Step 2: Convert to fraction form
    2,782.07/3,839.12 = 1,522.90/x
  3. Step 3: Cross multiply
    2,782.07x = 3,839.12 × 1,522.90
  4. Step 4: Simplify right side
    2,782.07x = 5,846,569.04
  5. Step 5: Solve for x
    x = 5,846,569.04/2,782.07
  6. Step 6: Final answer
    x = 2,101.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.