Home / 3,487.60-4,812.36-2,090

Finding the Fourth Proportional to 3,487.60, 4,812.36 and 2,090

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Solution

The fourth proportional to 3,487.60, 4,812.36 and 2,090 is: 2,883.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,487.60 : 4,812.36 = 2,090 : x
  2. Step 2: Convert to fraction form
    3,487.60/4,812.36 = 2,090/x
  3. Step 3: Cross multiply
    3,487.60x = 4,812.36 × 2,090
  4. Step 4: Simplify right side
    3,487.60x = 10,057,832.40
  5. Step 5: Solve for x
    x = 10,057,832.40/3,487.60
  6. Step 6: Final answer
    x = 2,883.88

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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.