Home / 2,032.20-2,803.80-1,245.60

Finding the Fourth Proportional to 2,032.20, 2,803.80 and 1,245.60

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Solution

The fourth proportional to 2,032.20, 2,803.80 and 1,245.60 is: 1,718.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,032.20 : 2,803.80 = 1,245.60 : x
  2. Step 2: Convert to fraction form
    2,032.20/2,803.80 = 1,245.60/x
  3. Step 3: Cross multiply
    2,032.20x = 2,803.80 × 1,245.60
  4. Step 4: Simplify right side
    2,032.20x = 3,492,413.28
  5. Step 5: Solve for x
    x = 3,492,413.28/2,032.20
  6. Step 6: Final answer
    x = 1,718.54

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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.