Home / 3,840.83-5,762.66-1,620.23

Finding the Fourth Proportional to 3,840.83, 5,762.66 and 1,620.23

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Solution

The fourth proportional to 3,840.83, 5,762.66 and 1,620.23 is: 2,430.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,840.83 : 5,762.66 = 1,620.23 : x
  2. Step 2: Convert to fraction form
    3,840.83/5,762.66 = 1,620.23/x
  3. Step 3: Cross multiply
    3,840.83x = 5,762.66 × 1,620.23
  4. Step 4: Simplify right side
    3,840.83x = 9,336,797.70
  5. Step 5: Solve for x
    x = 9,336,797.70/3,840.83
  6. Step 6: Final answer
    x = 2,430.93

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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.