Home / 1,261.94-1,890.39-1,002.38

Finding the Fourth Proportional to 1,261.94, 1,890.39 and 1,002.38

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Solution

The fourth proportional to 1,261.94, 1,890.39 and 1,002.38 is: 1,501.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261.94 : 1,890.39 = 1,002.38 : x
  2. Step 2: Convert to fraction form
    1,261.94/1,890.39 = 1,002.38/x
  3. Step 3: Cross multiply
    1,261.94x = 1,890.39 × 1,002.38
  4. Step 4: Simplify right side
    1,261.94x = 1,894,889.13
  5. Step 5: Solve for x
    x = 1,894,889.13/1,261.94
  6. Step 6: Final answer
    x = 1,501.57

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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.