Home / 3,171.88-4,756.90-1,223.63

Finding the Fourth Proportional to 3,171.88, 4,756.90 and 1,223.63

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Solution

The fourth proportional to 3,171.88, 4,756.90 and 1,223.63 is: 1,835.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,171.88 : 4,756.90 = 1,223.63 : x
  2. Step 2: Convert to fraction form
    3,171.88/4,756.90 = 1,223.63/x
  3. Step 3: Cross multiply
    3,171.88x = 4,756.90 × 1,223.63
  4. Step 4: Simplify right side
    3,171.88x = 5,820,685.55
  5. Step 5: Solve for x
    x = 5,820,685.55/3,171.88
  6. Step 6: Final answer
    x = 1,835.09

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1.5x scale

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.