Home / 1,638.10-2,260.02-1,048.99

Finding the Fourth Proportional to 1,638.10, 2,260.02 and 1,048.99

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Solution

The fourth proportional to 1,638.10, 2,260.02 and 1,048.99 is: 1,447.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638.10 : 2,260.02 = 1,048.99 : x
  2. Step 2: Convert to fraction form
    1,638.10/2,260.02 = 1,048.99/x
  3. Step 3: Cross multiply
    1,638.10x = 2,260.02 × 1,048.99
  4. Step 4: Simplify right side
    1,638.10x = 2,370,738.38
  5. Step 5: Solve for x
    x = 2,370,738.38/1,638.10
  6. Step 6: Final answer
    x = 1,447.25

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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.