Home / 3,140.37-4,706.64-2,749.55

Finding the Fourth Proportional to 3,140.37, 4,706.64 and 2,749.55

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Solution

The fourth proportional to 3,140.37, 4,706.64 and 2,749.55 is: 4,120.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140.37 : 4,706.64 = 2,749.55 : x
  2. Step 2: Convert to fraction form
    3,140.37/4,706.64 = 2,749.55/x
  3. Step 3: Cross multiply
    3,140.37x = 4,706.64 × 2,749.55
  4. Step 4: Simplify right side
    3,140.37x = 12,941,118.48
  5. Step 5: Solve for x
    x = 12,941,118.48/3,140.37
  6. Step 6: Final answer
    x = 4,120.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.