Home / 5,588.47-8,382.99-1,428.51

Finding the Fourth Proportional to 5,588.47, 8,382.99 and 1,428.51

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Solution

The fourth proportional to 5,588.47, 8,382.99 and 1,428.51 is: 2,142.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,588.47 : 8,382.99 = 1,428.51 : x
  2. Step 2: Convert to fraction form
    5,588.47/8,382.99 = 1,428.51/x
  3. Step 3: Cross multiply
    5,588.47x = 8,382.99 × 1,428.51
  4. Step 4: Simplify right side
    5,588.47x = 11,975,185.04
  5. Step 5: Solve for x
    x = 11,975,185.04/5,588.47
  6. Step 6: Final answer
    x = 2,142.84

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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.