Home / 2,858.38-4,286.76-1,471.28

Finding the Fourth Proportional to 2,858.38, 4,286.76 and 1,471.28

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Solution

The fourth proportional to 2,858.38, 4,286.76 and 1,471.28 is: 2,206.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,858.38 : 4,286.76 = 1,471.28 : x
  2. Step 2: Convert to fraction form
    2,858.38/4,286.76 = 1,471.28/x
  3. Step 3: Cross multiply
    2,858.38x = 4,286.76 × 1,471.28
  4. Step 4: Simplify right side
    2,858.38x = 6,307,024.25
  5. Step 5: Solve for x
    x = 6,307,024.25/2,858.38
  6. Step 6: Final answer
    x = 2,206.50

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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.