Home / 2,981.28-4,110.39-2,477.04

Finding the Fourth Proportional to 2,981.28, 4,110.39 and 2,477.04

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Solution

The fourth proportional to 2,981.28, 4,110.39 and 2,477.04 is: 3,415.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,981.28 : 4,110.39 = 2,477.04 : x
  2. Step 2: Convert to fraction form
    2,981.28/4,110.39 = 2,477.04/x
  3. Step 3: Cross multiply
    2,981.28x = 4,110.39 × 2,477.04
  4. Step 4: Simplify right side
    2,981.28x = 10,181,600.45
  5. Step 5: Solve for x
    x = 10,181,600.45/2,981.28
  6. Step 6: Final answer
    x = 3,415.18

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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.