Home / 2,782.43-3,839.93-1,603.57

Finding the Fourth Proportional to 2,782.43, 3,839.93 and 1,603.57

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Solution

The fourth proportional to 2,782.43, 3,839.93 and 1,603.57 is: 2,213.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,782.43 : 3,839.93 = 1,603.57 : x
  2. Step 2: Convert to fraction form
    2,782.43/3,839.93 = 1,603.57/x
  3. Step 3: Cross multiply
    2,782.43x = 3,839.93 × 1,603.57
  4. Step 4: Simplify right side
    2,782.43x = 6,157,615.57
  5. Step 5: Solve for x
    x = 6,157,615.57/2,782.43
  6. Step 6: Final answer
    x = 2,213.04

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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.