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Finding the Fourth Proportional to 4,762.96, 7,144.42 and 1,300.20

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Solution

The fourth proportional to 4,762.96, 7,144.42 and 1,300.20 is: 1,950.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,762.96 : 7,144.42 = 1,300.20 : x
  2. Step 2: Convert to fraction form
    4,762.96/7,144.42 = 1,300.20/x
  3. Step 3: Cross multiply
    4,762.96x = 7,144.42 × 1,300.20
  4. Step 4: Simplify right side
    4,762.96x = 9,289,174.88
  5. Step 5: Solve for x
    x = 9,289,174.88/4,762.96
  6. Step 6: Final answer
    x = 1,950.29

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1.5x scale

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.