Home / 2,858.45-4,285.67-1,376.87

Finding the Fourth Proportional to 2,858.45, 4,285.67 and 1,376.87

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Solution

The fourth proportional to 2,858.45, 4,285.67 and 1,376.87 is: 2,064.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,858.45 : 4,285.67 = 1,376.87 : x
  2. Step 2: Convert to fraction form
    2,858.45/4,285.67 = 1,376.87/x
  3. Step 3: Cross multiply
    2,858.45x = 4,285.67 × 1,376.87
  4. Step 4: Simplify right side
    2,858.45x = 5,900,782.14
  5. Step 5: Solve for x
    x = 5,900,782.14/2,858.45
  6. Step 6: Final answer
    x = 2,064.33

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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.