Home / 2,146.35-2,961.45-1,555.86

Finding the Fourth Proportional to 2,146.35, 2,961.45 and 1,555.86

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Solution

The fourth proportional to 2,146.35, 2,961.45 and 1,555.86 is: 2,146.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,146.35 : 2,961.45 = 1,555.86 : x
  2. Step 2: Convert to fraction form
    2,146.35/2,961.45 = 1,555.86/x
  3. Step 3: Cross multiply
    2,146.35x = 2,961.45 × 1,555.86
  4. Step 4: Simplify right side
    2,146.35x = 4,607,596.33
  5. Step 5: Solve for x
    x = 4,607,596.33/2,146.35
  6. Step 6: Final answer
    x = 2,146.72

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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.