Home / 2,390.63-3,291.44-2,016.68

Finding the Fourth Proportional to 2,390.63, 3,291.44 and 2,016.68

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Solution

The fourth proportional to 2,390.63, 3,291.44 and 2,016.68 is: 2,776.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,390.63 : 3,291.44 = 2,016.68 : x
  2. Step 2: Convert to fraction form
    2,390.63/3,291.44 = 2,016.68/x
  3. Step 3: Cross multiply
    2,390.63x = 3,291.44 × 2,016.68
  4. Step 4: Simplify right side
    2,390.63x = 6,637,754.68
  5. Step 5: Solve for x
    x = 6,637,754.68/2,390.63
  6. Step 6: Final answer
    x = 2,776.58

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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.