Home / 4,002.40-6,002.70-1,228.60

Finding the Fourth Proportional to 4,002.40, 6,002.70 and 1,228.60

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Solution

The fourth proportional to 4,002.40, 6,002.70 and 1,228.60 is: 1,842.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,002.40 : 6,002.70 = 1,228.60 : x
  2. Step 2: Convert to fraction form
    4,002.40/6,002.70 = 1,228.60/x
  3. Step 3: Cross multiply
    4,002.40x = 6,002.70 × 1,228.60
  4. Step 4: Simplify right side
    4,002.40x = 7,374,917.22
  5. Step 5: Solve for x
    x = 7,374,917.22/4,002.40
  6. Step 6: Final answer
    x = 1,842.62

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1.5x scale

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.