Home / 3,055.31-4,216.43-1,728.99

Finding the Fourth Proportional to 3,055.31, 4,216.43 and 1,728.99

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Solution

The fourth proportional to 3,055.31, 4,216.43 and 1,728.99 is: 2,386.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,055.31 : 4,216.43 = 1,728.99 : x
  2. Step 2: Convert to fraction form
    3,055.31/4,216.43 = 1,728.99/x
  3. Step 3: Cross multiply
    3,055.31x = 4,216.43 × 1,728.99
  4. Step 4: Simplify right side
    3,055.31x = 7,290,156.66
  5. Step 5: Solve for x
    x = 7,290,156.66/3,055.31
  6. Step 6: Final answer
    x = 2,386.06

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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.