Home / 2,840.14-4,255.89-1,685.26

Finding the Fourth Proportional to 2,840.14, 4,255.89 and 1,685.26

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Solution

The fourth proportional to 2,840.14, 4,255.89 and 1,685.26 is: 2,525.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,840.14 : 4,255.89 = 1,685.26 : x
  2. Step 2: Convert to fraction form
    2,840.14/4,255.89 = 1,685.26/x
  3. Step 3: Cross multiply
    2,840.14x = 4,255.89 × 1,685.26
  4. Step 4: Simplify right side
    2,840.14x = 7,172,281.18
  5. Step 5: Solve for x
    x = 7,172,281.18/2,840.14
  6. Step 6: Final answer
    x = 2,525.33

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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.