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Finding the Fourth Proportional to 5,000.65, 6,900.64 and 2,762.09

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Solution

The fourth proportional to 5,000.65, 6,900.64 and 2,762.09 is: 3,811.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,000.65 : 6,900.64 = 2,762.09 : x
  2. Step 2: Convert to fraction form
    5,000.65/6,900.64 = 2,762.09/x
  3. Step 3: Cross multiply
    5,000.65x = 6,900.64 × 2,762.09
  4. Step 4: Simplify right side
    5,000.65x = 19,060,173.21
  5. Step 5: Solve for x
    x = 19,060,173.21/5,000.65
  6. Step 6: Final answer
    x = 3,811.54

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1.5x scale

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.