Home / 3,835.84-5,753.77-1,238.78

Finding the Fourth Proportional to 3,835.84, 5,753.77 and 1,238.78

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Solution

The fourth proportional to 3,835.84, 5,753.77 and 1,238.78 is: 1,858.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,835.84 : 5,753.77 = 1,238.78 : x
  2. Step 2: Convert to fraction form
    3,835.84/5,753.77 = 1,238.78/x
  3. Step 3: Cross multiply
    3,835.84x = 5,753.77 × 1,238.78
  4. Step 4: Simplify right side
    3,835.84x = 7,127,655.20
  5. Step 5: Solve for x
    x = 7,127,655.20/3,835.84
  6. Step 6: Final answer
    x = 1,858.17

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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.