Home / 3,835.04-5,290.86-2,156.06

Finding the Fourth Proportional to 3,835.04, 5,290.86 and 2,156.06

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Solution

The fourth proportional to 3,835.04, 5,290.86 and 2,156.06 is: 2,974.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,835.04 : 5,290.86 = 2,156.06 : x
  2. Step 2: Convert to fraction form
    3,835.04/5,290.86 = 2,156.06/x
  3. Step 3: Cross multiply
    3,835.04x = 5,290.86 × 2,156.06
  4. Step 4: Simplify right side
    3,835.04x = 11,407,424.84
  5. Step 5: Solve for x
    x = 11,407,424.84/3,835.04
  6. Step 6: Final answer
    x = 2,974.52

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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.