Home / 2,056.85-2,838.55-1,218.03

Finding the Fourth Proportional to 2,056.85, 2,838.55 and 1,218.03

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Solution

The fourth proportional to 2,056.85, 2,838.55 and 1,218.03 is: 1,680.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,056.85 : 2,838.55 = 1,218.03 : x
  2. Step 2: Convert to fraction form
    2,056.85/2,838.55 = 1,218.03/x
  3. Step 3: Cross multiply
    2,056.85x = 2,838.55 × 1,218.03
  4. Step 4: Simplify right side
    2,056.85x = 3,457,439.06
  5. Step 5: Solve for x
    x = 3,457,439.06/2,056.85
  6. Step 6: Final answer
    x = 1,680.94

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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.