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Finding the Fourth Proportional to 3,866.50, 5,800.71 and 1,130.50

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Solution

The fourth proportional to 3,866.50, 5,800.71 and 1,130.50 is: 1,696.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,866.50 : 5,800.71 = 1,130.50 : x
  2. Step 2: Convert to fraction form
    3,866.50/5,800.71 = 1,130.50/x
  3. Step 3: Cross multiply
    3,866.50x = 5,800.71 × 1,130.50
  4. Step 4: Simplify right side
    3,866.50x = 6,557,702.66
  5. Step 5: Solve for x
    x = 6,557,702.66/3,866.50
  6. Step 6: Final answer
    x = 1,696.03

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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.