Home / 2,991.15-4,494.96-1,605.51

Finding the Fourth Proportional to 2,991.15, 4,494.96 and 1,605.51

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Solution

The fourth proportional to 2,991.15, 4,494.96 and 1,605.51 is: 2,412.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,991.15 : 4,494.96 = 1,605.51 : x
  2. Step 2: Convert to fraction form
    2,991.15/4,494.96 = 1,605.51/x
  3. Step 3: Cross multiply
    2,991.15x = 4,494.96 × 1,605.51
  4. Step 4: Simplify right side
    2,991.15x = 7,216,703.23
  5. Step 5: Solve for x
    x = 7,216,703.23/2,991.15
  6. Step 6: Final answer
    x = 2,412.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.