Home / 4,739.20-7,107.90-1,452.40

Finding the Fourth Proportional to 4,739.20, 7,107.90 and 1,452.40

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Solution

The fourth proportional to 4,739.20, 7,107.90 and 1,452.40 is: 2,178.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,739.20 : 7,107.90 = 1,452.40 : x
  2. Step 2: Convert to fraction form
    4,739.20/7,107.90 = 1,452.40/x
  3. Step 3: Cross multiply
    4,739.20x = 7,107.90 × 1,452.40
  4. Step 4: Simplify right side
    4,739.20x = 10,323,513.96
  5. Step 5: Solve for x
    x = 10,323,513.96/4,739.20
  6. Step 6: Final answer
    x = 2,178.32

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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.