Home / 2,057.35-2,838.96-1,218.08

Finding the Fourth Proportional to 2,057.35, 2,838.96 and 1,218.08

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Solution

The fourth proportional to 2,057.35, 2,838.96 and 1,218.08 is: 1,680.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,057.35 : 2,838.96 = 1,218.08 : x
  2. Step 2: Convert to fraction form
    2,057.35/2,838.96 = 1,218.08/x
  3. Step 3: Cross multiply
    2,057.35x = 2,838.96 × 1,218.08
  4. Step 4: Simplify right side
    2,057.35x = 3,458,080.40
  5. Step 5: Solve for x
    x = 3,458,080.40/2,057.35
  6. Step 6: Final answer
    x = 1,680.84

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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.