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Finding the Fourth Proportional to 5,563.89, 8,347.63 and 1,866.45

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Solution

The fourth proportional to 5,563.89, 8,347.63 and 1,866.45 is: 2,800.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,563.89 : 8,347.63 = 1,866.45 : x
  2. Step 2: Convert to fraction form
    5,563.89/8,347.63 = 1,866.45/x
  3. Step 3: Cross multiply
    5,563.89x = 8,347.63 × 1,866.45
  4. Step 4: Simplify right side
    5,563.89x = 15,580,434.01
  5. Step 5: Solve for x
    x = 15,580,434.01/5,563.89
  6. Step 6: Final answer
    x = 2,800.28

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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.