Home / 3,148.20-4,697.67-3,126.60

Finding the Fourth Proportional to 3,148.20, 4,697.67 and 3,126.60

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Solution

The fourth proportional to 3,148.20, 4,697.67 and 3,126.60 is: 4,665.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,148.20 : 4,697.67 = 3,126.60 : x
  2. Step 2: Convert to fraction form
    3,148.20/4,697.67 = 3,126.60/x
  3. Step 3: Cross multiply
    3,148.20x = 4,697.67 × 3,126.60
  4. Step 4: Simplify right side
    3,148.20x = 14,687,735.02
  5. Step 5: Solve for x
    x = 14,687,735.02/3,148.20
  6. Step 6: Final answer
    x = 4,665.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.