Home / 3,835.54-5,291.55-2,156.57

Finding the Fourth Proportional to 3,835.54, 5,291.55 and 2,156.57

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Solution

The fourth proportional to 3,835.54, 5,291.55 and 2,156.57 is: 2,975.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,835.54 : 5,291.55 = 2,156.57 : x
  2. Step 2: Convert to fraction form
    3,835.54/5,291.55 = 2,156.57/x
  3. Step 3: Cross multiply
    3,835.54x = 5,291.55 × 2,156.57
  4. Step 4: Simplify right side
    3,835.54x = 11,411,597.98
  5. Step 5: Solve for x
    x = 11,411,597.98/3,835.54
  6. Step 6: Final answer
    x = 2,975.23

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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.