Home / 2,854.28-4,280.38-1,210.94

Finding the Fourth Proportional to 2,854.28, 4,280.38 and 1,210.94

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Solution

The fourth proportional to 2,854.28, 4,280.38 and 1,210.94 is: 1,815.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,854.28 : 4,280.38 = 1,210.94 : x
  2. Step 2: Convert to fraction form
    2,854.28/4,280.38 = 1,210.94/x
  3. Step 3: Cross multiply
    2,854.28x = 4,280.38 × 1,210.94
  4. Step 4: Simplify right side
    2,854.28x = 5,183,283.36
  5. Step 5: Solve for x
    x = 5,183,283.36/2,854.28
  6. Step 6: Final answer
    x = 1,815.97

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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.