Home / 2,912.64-4,368.96-1,270.38

Finding the Fourth Proportional to 2,912.64, 4,368.96 and 1,270.38

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Solution

The fourth proportional to 2,912.64, 4,368.96 and 1,270.38 is: 1,905.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912.64 : 4,368.96 = 1,270.38 : x
  2. Step 2: Convert to fraction form
    2,912.64/4,368.96 = 1,270.38/x
  3. Step 3: Cross multiply
    2,912.64x = 4,368.96 × 1,270.38
  4. Step 4: Simplify right side
    2,912.64x = 5,550,239.40
  5. Step 5: Solve for x
    x = 5,550,239.40/2,912.64
  6. Step 6: Final answer
    x = 1,905.57

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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.