Home / 4,861.78-6,706.95-2,871.01

Finding the Fourth Proportional to 4,861.78, 6,706.95 and 2,871.01

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Solution

The fourth proportional to 4,861.78, 6,706.95 and 2,871.01 is: 3,960.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,861.78 : 6,706.95 = 2,871.01 : x
  2. Step 2: Convert to fraction form
    4,861.78/6,706.95 = 2,871.01/x
  3. Step 3: Cross multiply
    4,861.78x = 6,706.95 × 2,871.01
  4. Step 4: Simplify right side
    4,861.78x = 19,255,686.98
  5. Step 5: Solve for x
    x = 19,255,686.98/4,861.78
  6. Step 6: Final answer
    x = 3,960.63

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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.