Home / 2,485.16-3,429.23-1,422.98

Finding the Fourth Proportional to 2,485.16, 3,429.23 and 1,422.98

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Solution

The fourth proportional to 2,485.16, 3,429.23 and 1,422.98 is: 1,963.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,485.16 : 3,429.23 = 1,422.98 : x
  2. Step 2: Convert to fraction form
    2,485.16/3,429.23 = 1,422.98/x
  3. Step 3: Cross multiply
    2,485.16x = 3,429.23 × 1,422.98
  4. Step 4: Simplify right side
    2,485.16x = 4,879,701.44
  5. Step 5: Solve for x
    x = 4,879,701.44/2,485.16
  6. Step 6: Final answer
    x = 1,963.54

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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.