Home / 1,850.45-2,553.60-1,011.15

Finding the Fourth Proportional to 1,850.45, 2,553.60 and 1,011.15

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Solution

The fourth proportional to 1,850.45, 2,553.60 and 1,011.15 is: 1,395.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,850.45 : 2,553.60 = 1,011.15 : x
  2. Step 2: Convert to fraction form
    1,850.45/2,553.60 = 1,011.15/x
  3. Step 3: Cross multiply
    1,850.45x = 2,553.60 × 1,011.15
  4. Step 4: Simplify right side
    1,850.45x = 2,582,072.64
  5. Step 5: Solve for x
    x = 2,582,072.64/1,850.45
  6. Step 6: Final answer
    x = 1,395.38

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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.