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Finding the Fourth Proportional to 4,090, 5,644.36 and 2,434.96

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Solution

The fourth proportional to 4,090, 5,644.36 and 2,434.96 is: 3,360.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,090 : 5,644.36 = 2,434.96 : x
  2. Step 2: Convert to fraction form
    4,090/5,644.36 = 2,434.96/x
  3. Step 3: Cross multiply
    4,090x = 5,644.36 × 2,434.96
  4. Step 4: Simplify right side
    4,090x = 13,743,790.83
  5. Step 5: Solve for x
    x = 13,743,790.83/4,090
  6. Step 6: Final answer
    x = 3,360.34

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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.