Home / 2,146.36-3,218.20-1,207.77

Finding the Fourth Proportional to 2,146.36, 3,218.20 and 1,207.77

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Solution

The fourth proportional to 2,146.36, 3,218.20 and 1,207.77 is: 1,810.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,146.36 : 3,218.20 = 1,207.77 : x
  2. Step 2: Convert to fraction form
    2,146.36/3,218.20 = 1,207.77/x
  3. Step 3: Cross multiply
    2,146.36x = 3,218.20 × 1,207.77
  4. Step 4: Simplify right side
    2,146.36x = 3,886,845.41
  5. Step 5: Solve for x
    x = 3,886,845.41/2,146.36
  6. Step 6: Final answer
    x = 1,810.90

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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.