Home / 1,636.43-2,438.10-1,553.81

Finding the Fourth Proportional to 1,636.43, 2,438.10 and 1,553.81

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Solution

The fourth proportional to 1,636.43, 2,438.10 and 1,553.81 is: 2,315.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,636.43 : 2,438.10 = 1,553.81 : x
  2. Step 2: Convert to fraction form
    1,636.43/2,438.10 = 1,553.81/x
  3. Step 3: Cross multiply
    1,636.43x = 2,438.10 × 1,553.81
  4. Step 4: Simplify right side
    1,636.43x = 3,788,344.16
  5. Step 5: Solve for x
    x = 3,788,344.16/1,636.43
  6. Step 6: Final answer
    x = 2,315.01

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.