Home / 4,905.86-6,770.12-2,917.40

Finding the Fourth Proportional to 4,905.86, 6,770.12 and 2,917.40

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Solution

The fourth proportional to 4,905.86, 6,770.12 and 2,917.40 is: 4,026.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,905.86 : 6,770.12 = 2,917.40 : x
  2. Step 2: Convert to fraction form
    4,905.86/6,770.12 = 2,917.40/x
  3. Step 3: Cross multiply
    4,905.86x = 6,770.12 × 2,917.40
  4. Step 4: Simplify right side
    4,905.86x = 19,751,099.65
  5. Step 5: Solve for x
    x = 19,751,099.65/4,905.86
  6. Step 6: Final answer
    x = 4,026.03

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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.