Home / 2,828.25-4,240.50-1,266.10

Finding the Fourth Proportional to 2,828.25, 4,240.50 and 1,266.10

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Solution

The fourth proportional to 2,828.25, 4,240.50 and 1,266.10 is: 1,898.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,828.25 : 4,240.50 = 1,266.10 : x
  2. Step 2: Convert to fraction form
    2,828.25/4,240.50 = 1,266.10/x
  3. Step 3: Cross multiply
    2,828.25x = 4,240.50 × 1,266.10
  4. Step 4: Simplify right side
    2,828.25x = 5,368,897.05
  5. Step 5: Solve for x
    x = 5,368,897.05/2,828.25
  6. Step 6: Final answer
    x = 1,898.31

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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.