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Finding the Fourth Proportional to 5,890.77, 8,825.64 and 3,111.23

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Solution

The fourth proportional to 5,890.77, 8,825.64 and 3,111.23 is: 4,661.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,890.77 : 8,825.64 = 3,111.23 : x
  2. Step 2: Convert to fraction form
    5,890.77/8,825.64 = 3,111.23/x
  3. Step 3: Cross multiply
    5,890.77x = 8,825.64 × 3,111.23
  4. Step 4: Simplify right side
    5,890.77x = 27,458,595.94
  5. Step 5: Solve for x
    x = 27,458,595.94/5,890.77
  6. Step 6: Final answer
    x = 4,661.29

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1.5x scale

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.