Home / 3,126.10-4,687.89-1,177.24

Finding the Fourth Proportional to 3,126.10, 4,687.89 and 1,177.24

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Solution

The fourth proportional to 3,126.10, 4,687.89 and 1,177.24 is: 1,765.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,126.10 : 4,687.89 = 1,177.24 : x
  2. Step 2: Convert to fraction form
    3,126.10/4,687.89 = 1,177.24/x
  3. Step 3: Cross multiply
    3,126.10x = 4,687.89 × 1,177.24
  4. Step 4: Simplify right side
    3,126.10x = 5,518,771.62
  5. Step 5: Solve for x
    x = 5,518,771.62/3,126.10
  6. Step 6: Final answer
    x = 1,765.39

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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.