Home / 2,854.91-4,280.54-1,211.02

Finding the Fourth Proportional to 2,854.91, 4,280.54 and 1,211.02

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Solution

The fourth proportional to 2,854.91, 4,280.54 and 1,211.02 is: 1,815.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,854.91 : 4,280.54 = 1,211.02 : x
  2. Step 2: Convert to fraction form
    2,854.91/4,280.54 = 1,211.02/x
  3. Step 3: Cross multiply
    2,854.91x = 4,280.54 × 1,211.02
  4. Step 4: Simplify right side
    2,854.91x = 5,183,802.79
  5. Step 5: Solve for x
    x = 5,183,802.79/2,854.91
  6. Step 6: Final answer
    x = 1,815.75

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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.