Home / 2,215.79-3,056.24-1,904.75

Finding the Fourth Proportional to 2,215.79, 3,056.24 and 1,904.75

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Solution

The fourth proportional to 2,215.79, 3,056.24 and 1,904.75 is: 2,627.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,215.79 : 3,056.24 = 1,904.75 : x
  2. Step 2: Convert to fraction form
    2,215.79/3,056.24 = 1,904.75/x
  3. Step 3: Cross multiply
    2,215.79x = 3,056.24 × 1,904.75
  4. Step 4: Simplify right side
    2,215.79x = 5,821,363.62
  5. Step 5: Solve for x
    x = 5,821,363.62/2,215.79
  6. Step 6: Final answer
    x = 2,627.22

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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.