Home / 3,054.50-4,215.31-1,728.18

Finding the Fourth Proportional to 3,054.50, 4,215.31 and 1,728.18

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Solution

The fourth proportional to 3,054.50, 4,215.31 and 1,728.18 is: 2,384.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,054.50 : 4,215.31 = 1,728.18 : x
  2. Step 2: Convert to fraction form
    3,054.50/4,215.31 = 1,728.18/x
  3. Step 3: Cross multiply
    3,054.50x = 4,215.31 × 1,728.18
  4. Step 4: Simplify right side
    3,054.50x = 7,284,814.44
  5. Step 5: Solve for x
    x = 7,284,814.44/3,054.50
  6. Step 6: Final answer
    x = 2,384.94

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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.