Home / 1,367.08-2,045.72-1,275.56

Finding the Fourth Proportional to 1,367.08, 2,045.72 and 1,275.56

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Solution

The fourth proportional to 1,367.08, 2,045.72 and 1,275.56 is: 1,908.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,367.08 : 2,045.72 = 1,275.56 : x
  2. Step 2: Convert to fraction form
    1,367.08/2,045.72 = 1,275.56/x
  3. Step 3: Cross multiply
    1,367.08x = 2,045.72 × 1,275.56
  4. Step 4: Simplify right side
    1,367.08x = 2,609,438.60
  5. Step 5: Solve for x
    x = 2,609,438.60/1,367.08
  6. Step 6: Final answer
    x = 1,908.77

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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.