Home / 4,739.32-7,107.90-2,143

Finding the Fourth Proportional to 4,739.32, 7,107.90 and 2,143

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Solution

The fourth proportional to 4,739.32, 7,107.90 and 2,143 is: 3,214.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,739.32 : 7,107.90 = 2,143 : x
  2. Step 2: Convert to fraction form
    4,739.32/7,107.90 = 2,143/x
  3. Step 3: Cross multiply
    4,739.32x = 7,107.90 × 2,143
  4. Step 4: Simplify right side
    4,739.32x = 15,232,229.70
  5. Step 5: Solve for x
    x = 15,232,229.70/4,739.32
  6. Step 6: Final answer
    x = 3,214.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.