Home / 2,945.25-4,064.49-1,618.98

Finding the Fourth Proportional to 2,945.25, 4,064.49 and 1,618.98

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Solution

The fourth proportional to 2,945.25, 4,064.49 and 1,618.98 is: 2,234.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,945.25 : 4,064.49 = 1,618.98 : x
  2. Step 2: Convert to fraction form
    2,945.25/4,064.49 = 1,618.98/x
  3. Step 3: Cross multiply
    2,945.25x = 4,064.49 × 1,618.98
  4. Step 4: Simplify right side
    2,945.25x = 6,580,328.02
  5. Step 5: Solve for x
    x = 6,580,328.02/2,945.25
  6. Step 6: Final answer
    x = 2,234.22

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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.