Home / 2,991.51-4,487.25-1,426.77

Finding the Fourth Proportional to 2,991.51, 4,487.25 and 1,426.77

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Solution

The fourth proportional to 2,991.51, 4,487.25 and 1,426.77 is: 2,140.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,991.51 : 4,487.25 = 1,426.77 : x
  2. Step 2: Convert to fraction form
    2,991.51/4,487.25 = 1,426.77/x
  3. Step 3: Cross multiply
    2,991.51x = 4,487.25 × 1,426.77
  4. Step 4: Simplify right side
    2,991.51x = 6,402,273.68
  5. Step 5: Solve for x
    x = 6,402,273.68/2,991.51
  6. Step 6: Final answer
    x = 2,140.15

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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.