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Finding the Fourth Proportional to 3,487, 4,812.06 and 2,090.56

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Solution

The fourth proportional to 3,487, 4,812.06 and 2,090.56 is: 2,884.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,487 : 4,812.06 = 2,090.56 : x
  2. Step 2: Convert to fraction form
    3,487/4,812.06 = 2,090.56/x
  3. Step 3: Cross multiply
    3,487x = 4,812.06 × 2,090.56
  4. Step 4: Simplify right side
    3,487x = 10,059,900.15
  5. Step 5: Solve for x
    x = 10,059,900.15/3,487
  6. Step 6: Final answer
    x = 2,884.97

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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.