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Finding the Fourth Proportional to 5,378.50, 8,070.99 and 2,300.50

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Solution

The fourth proportional to 5,378.50, 8,070.99 and 2,300.50 is: 3,452.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,378.50 : 8,070.99 = 2,300.50 : x
  2. Step 2: Convert to fraction form
    5,378.50/8,070.99 = 2,300.50/x
  3. Step 3: Cross multiply
    5,378.50x = 8,070.99 × 2,300.50
  4. Step 4: Simplify right side
    5,378.50x = 18,567,312.50
  5. Step 5: Solve for x
    x = 18,567,312.50/5,378.50
  6. Step 6: Final answer
    x = 3,452.14

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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.