Home / 2,584.27-3,876.39-1,123.40

Finding the Fourth Proportional to 2,584.27, 3,876.39 and 1,123.40

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Solution

The fourth proportional to 2,584.27, 3,876.39 and 1,123.40 is: 1,685.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,584.27 : 3,876.39 = 1,123.40 : x
  2. Step 2: Convert to fraction form
    2,584.27/3,876.39 = 1,123.40/x
  3. Step 3: Cross multiply
    2,584.27x = 3,876.39 × 1,123.40
  4. Step 4: Simplify right side
    2,584.27x = 4,354,746.22
  5. Step 5: Solve for x
    x = 4,354,746.22/2,584.27
  6. Step 6: Final answer
    x = 1,685.10

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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.