Home / 1,828.43-2,523.23-989.13

Finding the Fourth Proportional to 1,828.43, 2,523.23 and 989.13

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Solution

The fourth proportional to 1,828.43, 2,523.23 and 989.13 is: 1,364.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,828.43 : 2,523.23 = 989.13 : x
  2. Step 2: Convert to fraction form
    1,828.43/2,523.23 = 989.13/x
  3. Step 3: Cross multiply
    1,828.43x = 2,523.23 × 989.13
  4. Step 4: Simplify right side
    1,828.43x = 2,495,792.35
  5. Step 5: Solve for x
    x = 2,495,792.35/1,828.43
  6. Step 6: Final answer
    x = 1,364.99

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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.