Home / 1,271.16-1,913.49-1,083.24

Finding the Fourth Proportional to 1,271.16, 1,913.49 and 1,083.24

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Solution

The fourth proportional to 1,271.16, 1,913.49 and 1,083.24 is: 1,630.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,271.16 : 1,913.49 = 1,083.24 : x
  2. Step 2: Convert to fraction form
    1,271.16/1,913.49 = 1,083.24/x
  3. Step 3: Cross multiply
    1,271.16x = 1,913.49 × 1,083.24
  4. Step 4: Simplify right side
    1,271.16x = 2,072,768.91
  5. Step 5: Solve for x
    x = 2,072,768.91/1,271.16
  6. Step 6: Final answer
    x = 1,630.61

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.