Home / 2,755.55-4,135.69-1,113.28

Finding the Fourth Proportional to 2,755.55, 4,135.69 and 1,113.28

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Solution

The fourth proportional to 2,755.55, 4,135.69 and 1,113.28 is: 1,670.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,755.55 : 4,135.69 = 1,113.28 : x
  2. Step 2: Convert to fraction form
    2,755.55/4,135.69 = 1,113.28/x
  3. Step 3: Cross multiply
    2,755.55x = 4,135.69 × 1,113.28
  4. Step 4: Simplify right side
    2,755.55x = 4,604,172.02
  5. Step 5: Solve for x
    x = 4,604,172.02/2,755.55
  6. Step 6: Final answer
    x = 1,670.87

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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.