Home / 3,888.02-5,365.49-2,119.73

Finding the Fourth Proportional to 3,888.02, 5,365.49 and 2,119.73

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Solution

The fourth proportional to 3,888.02, 5,365.49 and 2,119.73 is: 2,925.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,888.02 : 5,365.49 = 2,119.73 : x
  2. Step 2: Convert to fraction form
    3,888.02/5,365.49 = 2,119.73/x
  3. Step 3: Cross multiply
    3,888.02x = 5,365.49 × 2,119.73
  4. Step 4: Simplify right side
    3,888.02x = 11,373,352.69
  5. Step 5: Solve for x
    x = 11,373,352.69/3,888.02
  6. Step 6: Final answer
    x = 2,925.23

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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.