Home / 2,777.45-3,832.91-1,782.75

Finding the Fourth Proportional to 2,777.45, 3,832.91 and 1,782.75

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Solution

The fourth proportional to 2,777.45, 3,832.91 and 1,782.75 is: 2,460.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,777.45 : 3,832.91 = 1,782.75 : x
  2. Step 2: Convert to fraction form
    2,777.45/3,832.91 = 1,782.75/x
  3. Step 3: Cross multiply
    2,777.45x = 3,832.91 × 1,782.75
  4. Step 4: Simplify right side
    2,777.45x = 6,833,111.39
  5. Step 5: Solve for x
    x = 6,833,111.39/2,777.45
  6. Step 6: Final answer
    x = 2,460.21

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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.