Home / 4,283.78-6,426.72-1,205.78

Finding the Fourth Proportional to 4,283.78, 6,426.72 and 1,205.78

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Solution

The fourth proportional to 4,283.78, 6,426.72 and 1,205.78 is: 1,808.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,283.78 : 6,426.72 = 1,205.78 : x
  2. Step 2: Convert to fraction form
    4,283.78/6,426.72 = 1,205.78/x
  3. Step 3: Cross multiply
    4,283.78x = 6,426.72 × 1,205.78
  4. Step 4: Simplify right side
    4,283.78x = 7,749,210.44
  5. Step 5: Solve for x
    x = 7,749,210.44/4,283.78
  6. Step 6: Final answer
    x = 1,808.97

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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.