Home / 2,918.51-4,022.71-2,066.65

Finding the Fourth Proportional to 2,918.51, 4,022.71 and 2,066.65

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Solution

The fourth proportional to 2,918.51, 4,022.71 and 2,066.65 is: 2,848.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918.51 : 4,022.71 = 2,066.65 : x
  2. Step 2: Convert to fraction form
    2,918.51/4,022.71 = 2,066.65/x
  3. Step 3: Cross multiply
    2,918.51x = 4,022.71 × 2,066.65
  4. Step 4: Simplify right side
    2,918.51x = 8,313,518.40
  5. Step 5: Solve for x
    x = 8,313,518.40/2,918.51
  6. Step 6: Final answer
    x = 2,848.55

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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.