Home / 1,431.08-1,960.09-1,347.02

Finding the Fourth Proportional to 1,431.08, 1,960.09 and 1,347.02

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Solution

The fourth proportional to 1,431.08, 1,960.09 and 1,347.02 is: 1,844.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431.08 : 1,960.09 = 1,347.02 : x
  2. Step 2: Convert to fraction form
    1,431.08/1,960.09 = 1,347.02/x
  3. Step 3: Cross multiply
    1,431.08x = 1,960.09 × 1,347.02
  4. Step 4: Simplify right side
    1,431.08x = 2,640,274.61
  5. Step 5: Solve for x
    x = 2,640,274.61/1,431.08
  6. Step 6: Final answer
    x = 1,844.95

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.