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Finding the Fourth Proportional to 5,564.54, 8,346 and 1,866.62

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Solution

The fourth proportional to 5,564.54, 8,346 and 1,866.62 is: 2,799.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,564.54 : 8,346 = 1,866.62 : x
  2. Step 2: Convert to fraction form
    5,564.54/8,346 = 1,866.62/x
  3. Step 3: Cross multiply
    5,564.54x = 8,346 × 1,866.62
  4. Step 4: Simplify right side
    5,564.54x = 15,578,810.52
  5. Step 5: Solve for x
    x = 15,578,810.52/5,564.54
  6. Step 6: Final answer
    x = 2,799.66

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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.