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Finding the Fourth Proportional to 5,000.81, 6,901.12 and 2,762.69

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Solution

The fourth proportional to 5,000.81, 6,901.12 and 2,762.69 is: 3,812.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,000.81 : 6,901.12 = 2,762.69 : x
  2. Step 2: Convert to fraction form
    5,000.81/6,901.12 = 2,762.69/x
  3. Step 3: Cross multiply
    5,000.81x = 6,901.12 × 2,762.69
  4. Step 4: Simplify right side
    5,000.81x = 19,065,699.86
  5. Step 5: Solve for x
    x = 19,065,699.86/5,000.81
  6. Step 6: Final answer
    x = 3,812.52

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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.