Home / 1,376.16-2,059.43-1,296.20

Finding the Fourth Proportional to 1,376.16, 2,059.43 and 1,296.20

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Solution

The fourth proportional to 1,376.16, 2,059.43 and 1,296.20 is: 1,939.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,376.16 : 2,059.43 = 1,296.20 : x
  2. Step 2: Convert to fraction form
    1,376.16/2,059.43 = 1,296.20/x
  3. Step 3: Cross multiply
    1,376.16x = 2,059.43 × 1,296.20
  4. Step 4: Simplify right side
    1,376.16x = 2,669,431.83
  5. Step 5: Solve for x
    x = 2,669,431.83/1,376.16
  6. Step 6: Final answer
    x = 1,939.77

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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.