Home / 2,143.02-2,957.23-1,258.75

Finding the Fourth Proportional to 2,143.02, 2,957.23 and 1,258.75

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Solution

The fourth proportional to 2,143.02, 2,957.23 and 1,258.75 is: 1,736.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,143.02 : 2,957.23 = 1,258.75 : x
  2. Step 2: Convert to fraction form
    2,143.02/2,957.23 = 1,258.75/x
  3. Step 3: Cross multiply
    2,143.02x = 2,957.23 × 1,258.75
  4. Step 4: Simplify right side
    2,143.02x = 3,722,413.26
  5. Step 5: Solve for x
    x = 3,722,413.26/2,143.02
  6. Step 6: Final answer
    x = 1,736.99

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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.