Home / 4,690.20-7,034.40-1,403.40

Finding the Fourth Proportional to 4,690.20, 7,034.40 and 1,403.40

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Solution

The fourth proportional to 4,690.20, 7,034.40 and 1,403.40 is: 2,104.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,690.20 : 7,034.40 = 1,403.40 : x
  2. Step 2: Convert to fraction form
    4,690.20/7,034.40 = 1,403.40/x
  3. Step 3: Cross multiply
    4,690.20x = 7,034.40 × 1,403.40
  4. Step 4: Simplify right side
    4,690.20x = 9,872,076.96
  5. Step 5: Solve for x
    x = 9,872,076.96/4,690.20
  6. Step 6: Final answer
    x = 2,104.83

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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.