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Finding the Fourth Proportional to 5,871.80, 8,814.90 and 5,828.60

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Solution

The fourth proportional to 5,871.80, 8,814.90 and 5,828.60 is: 8,750.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,871.80 : 8,814.90 = 5,828.60 : x
  2. Step 2: Convert to fraction form
    5,871.80/8,814.90 = 5,828.60/x
  3. Step 3: Cross multiply
    5,871.80x = 8,814.90 × 5,828.60
  4. Step 4: Simplify right side
    5,871.80x = 51,378,526.14
  5. Step 5: Solve for x
    x = 51,378,526.14/5,871.80
  6. Step 6: Final answer
    x = 8,750.05

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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.