Home / 2,962.31-4,087.46-2,178.23

Finding the Fourth Proportional to 2,962.31, 4,087.46 and 2,178.23

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Solution

The fourth proportional to 2,962.31, 4,087.46 and 2,178.23 is: 3,005.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,962.31 : 4,087.46 = 2,178.23 : x
  2. Step 2: Convert to fraction form
    2,962.31/4,087.46 = 2,178.23/x
  3. Step 3: Cross multiply
    2,962.31x = 4,087.46 × 2,178.23
  4. Step 4: Simplify right side
    2,962.31x = 8,903,413.00
  5. Step 5: Solve for x
    x = 8,903,413.00/2,962.31
  6. Step 6: Final answer
    x = 3,005.57

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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.