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Finding the Fourth Proportional to 5,003.81, 6,905.16 and 2,765.63

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Solution

The fourth proportional to 5,003.81, 6,905.16 and 2,765.63 is: 3,816.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,003.81 : 6,905.16 = 2,765.63 : x
  2. Step 2: Convert to fraction form
    5,003.81/6,905.16 = 2,765.63/x
  3. Step 3: Cross multiply
    5,003.81x = 6,905.16 × 2,765.63
  4. Step 4: Simplify right side
    5,003.81x = 19,097,117.65
  5. Step 5: Solve for x
    x = 19,097,117.65/5,003.81
  6. Step 6: Final answer
    x = 3,816.52

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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.