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Finding the Fourth Proportional to 4,159.62, 5,739.64 and 2,390.90

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Solution

The fourth proportional to 4,159.62, 5,739.64 and 2,390.90 is: 3,299.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,159.62 : 5,739.64 = 2,390.90 : x
  2. Step 2: Convert to fraction form
    4,159.62/5,739.64 = 2,390.90/x
  3. Step 3: Cross multiply
    4,159.62x = 5,739.64 × 2,390.90
  4. Step 4: Simplify right side
    4,159.62x = 13,722,905.28
  5. Step 5: Solve for x
    x = 13,722,905.28/4,159.62
  6. Step 6: Final answer
    x = 3,299.08

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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.