Home / 3,835.77-5,292.81-2,157.11

Finding the Fourth Proportional to 3,835.77, 5,292.81 and 2,157.11

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Solution

The fourth proportional to 3,835.77, 5,292.81 and 2,157.11 is: 2,976.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,835.77 : 5,292.81 = 2,157.11 : x
  2. Step 2: Convert to fraction form
    3,835.77/5,292.81 = 2,157.11/x
  3. Step 3: Cross multiply
    3,835.77x = 5,292.81 × 2,157.11
  4. Step 4: Simplify right side
    3,835.77x = 11,417,166.76
  5. Step 5: Solve for x
    x = 11,417,166.76/3,835.77
  6. Step 6: Final answer
    x = 2,976.50

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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.