Home / 3,007.60-4,511.40-2,132.80

Finding the Fourth Proportional to 3,007.60, 4,511.40 and 2,132.80

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Solution

The fourth proportional to 3,007.60, 4,511.40 and 2,132.80 is: 3,199.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,007.60 : 4,511.40 = 2,132.80 : x
  2. Step 2: Convert to fraction form
    3,007.60/4,511.40 = 2,132.80/x
  3. Step 3: Cross multiply
    3,007.60x = 4,511.40 × 2,132.80
  4. Step 4: Simplify right side
    3,007.60x = 9,621,913.92
  5. Step 5: Solve for x
    x = 9,621,913.92/3,007.60
  6. Step 6: Final answer
    x = 3,199.20

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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.