Home / 3,842.85-5,303.05-2,164.25

Finding the Fourth Proportional to 3,842.85, 5,303.05 and 2,164.25

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Solution

The fourth proportional to 3,842.85, 5,303.05 and 2,164.25 is: 2,986.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,842.85 : 5,303.05 = 2,164.25 : x
  2. Step 2: Convert to fraction form
    3,842.85/5,303.05 = 2,164.25/x
  3. Step 3: Cross multiply
    3,842.85x = 5,303.05 × 2,164.25
  4. Step 4: Simplify right side
    3,842.85x = 11,477,125.96
  5. Step 5: Solve for x
    x = 11,477,125.96/3,842.85
  6. Step 6: Final answer
    x = 2,986.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.