Home / 4,861.90-6,708.28-2,872.75

Finding the Fourth Proportional to 4,861.90, 6,708.28 and 2,872.75

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Solution

The fourth proportional to 4,861.90, 6,708.28 and 2,872.75 is: 3,963.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,861.90 : 6,708.28 = 2,872.75 : x
  2. Step 2: Convert to fraction form
    4,861.90/6,708.28 = 2,872.75/x
  3. Step 3: Cross multiply
    4,861.90x = 6,708.28 × 2,872.75
  4. Step 4: Simplify right side
    4,861.90x = 19,271,211.37
  5. Step 5: Solve for x
    x = 19,271,211.37/4,861.90
  6. Step 6: Final answer
    x = 3,963.72

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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.