Home / 2,971.28-4,100.98-2,473.40

Finding the Fourth Proportional to 2,971.28, 4,100.98 and 2,473.40

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Solution

The fourth proportional to 2,971.28, 4,100.98 and 2,473.40 is: 3,413.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,971.28 : 4,100.98 = 2,473.40 : x
  2. Step 2: Convert to fraction form
    2,971.28/4,100.98 = 2,473.40/x
  3. Step 3: Cross multiply
    2,971.28x = 4,100.98 × 2,473.40
  4. Step 4: Simplify right side
    2,971.28x = 10,143,363.93
  5. Step 5: Solve for x
    x = 10,143,363.93/2,971.28
  6. Step 6: Final answer
    x = 3,413.80

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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.