Home / 3,834.98-5,292.32-2,156.30

Finding the Fourth Proportional to 3,834.98, 5,292.32 and 2,156.30

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Solution

The fourth proportional to 3,834.98, 5,292.32 and 2,156.30 is: 2,975.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,834.98 : 5,292.32 = 2,156.30 : x
  2. Step 2: Convert to fraction form
    3,834.98/5,292.32 = 2,156.30/x
  3. Step 3: Cross multiply
    3,834.98x = 5,292.32 × 2,156.30
  4. Step 4: Simplify right side
    3,834.98x = 11,411,829.62
  5. Step 5: Solve for x
    x = 11,411,829.62/3,834.98
  6. Step 6: Final answer
    x = 2,975.72

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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.