Home / 6,940.36-10,410.60-2,780.74

Finding the Fourth Proportional to 6,940.36, 10,410.60 and 2,780.74

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Solution

The fourth proportional to 6,940.36, 10,410.60 and 2,780.74 is: 4,171.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,940.36 : 10,410.60 = 2,780.74 : x
  2. Step 2: Convert to fraction form
    6,940.36/10,410.60 = 2,780.74/x
  3. Step 3: Cross multiply
    6,940.36x = 10,410.60 × 2,780.74
  4. Step 4: Simplify right side
    6,940.36x = 28,949,171.84
  5. Step 5: Solve for x
    x = 28,949,171.84/6,940.36
  6. Step 6: Final answer
    x = 4,171.13

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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.