Home / 2,755.35-3,802.89-1,636.95

Finding the Fourth Proportional to 2,755.35, 3,802.89 and 1,636.95

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Solution

The fourth proportional to 2,755.35, 3,802.89 and 1,636.95 is: 2,259.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,755.35 : 3,802.89 = 1,636.95 : x
  2. Step 2: Convert to fraction form
    2,755.35/3,802.89 = 1,636.95/x
  3. Step 3: Cross multiply
    2,755.35x = 3,802.89 × 1,636.95
  4. Step 4: Simplify right side
    2,755.35x = 6,225,140.79
  5. Step 5: Solve for x
    x = 6,225,140.79/2,755.35
  6. Step 6: Final answer
    x = 2,259.29

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1.5x scale

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.