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Finding the Fourth Proportional to 5,487.94, 7,573.21 and 3,130.03

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Solution

The fourth proportional to 5,487.94, 7,573.21 and 3,130.03 is: 4,319.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,487.94 : 7,573.21 = 3,130.03 : x
  2. Step 2: Convert to fraction form
    5,487.94/7,573.21 = 3,130.03/x
  3. Step 3: Cross multiply
    5,487.94x = 7,573.21 × 3,130.03
  4. Step 4: Simplify right side
    5,487.94x = 23,704,374.50
  5. Step 5: Solve for x
    x = 23,704,374.50/5,487.94
  6. Step 6: Final answer
    x = 4,319.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.