Home / 3,051.72-4,211.55-1,725.55

Finding the Fourth Proportional to 3,051.72, 4,211.55 and 1,725.55

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Solution

The fourth proportional to 3,051.72, 4,211.55 and 1,725.55 is: 2,381.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,051.72 : 4,211.55 = 1,725.55 : x
  2. Step 2: Convert to fraction form
    3,051.72/4,211.55 = 1,725.55/x
  3. Step 3: Cross multiply
    3,051.72x = 4,211.55 × 1,725.55
  4. Step 4: Simplify right side
    3,051.72x = 7,267,229.57
  5. Step 5: Solve for x
    x = 7,267,229.57/3,051.72
  6. Step 6: Final answer
    x = 2,381.36

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Half scale
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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.