Home / 3,037.77-4,189.73-1,989.63

Finding the Fourth Proportional to 3,037.77, 4,189.73 and 1,989.63

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Solution

The fourth proportional to 3,037.77, 4,189.73 and 1,989.63 is: 2,744.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,037.77 : 4,189.73 = 1,989.63 : x
  2. Step 2: Convert to fraction form
    3,037.77/4,189.73 = 1,989.63/x
  3. Step 3: Cross multiply
    3,037.77x = 4,189.73 × 1,989.63
  4. Step 4: Simplify right side
    3,037.77x = 8,336,002.55
  5. Step 5: Solve for x
    x = 8,336,002.55/3,037.77
  6. Step 6: Final answer
    x = 2,744.12

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1.5x scale

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.