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Finding the Fourth Proportional to 4,805.81, 6,631.89 and 2,681.54

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Solution

The fourth proportional to 4,805.81, 6,631.89 and 2,681.54 is: 3,700.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,805.81 : 6,631.89 = 2,681.54 : x
  2. Step 2: Convert to fraction form
    4,805.81/6,631.89 = 2,681.54/x
  3. Step 3: Cross multiply
    4,805.81x = 6,631.89 × 2,681.54
  4. Step 4: Simplify right side
    4,805.81x = 17,783,678.31
  5. Step 5: Solve for x
    x = 17,783,678.31/4,805.81
  6. Step 6: Final answer
    x = 3,700.45

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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.