Home / 2,087.73-2,880.39-1,237.05

Finding the Fourth Proportional to 2,087.73, 2,880.39 and 1,237.05

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Solution

The fourth proportional to 2,087.73, 2,880.39 and 1,237.05 is: 1,706.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,087.73 : 2,880.39 = 1,237.05 : x
  2. Step 2: Convert to fraction form
    2,087.73/2,880.39 = 1,237.05/x
  3. Step 3: Cross multiply
    2,087.73x = 2,880.39 × 1,237.05
  4. Step 4: Simplify right side
    2,087.73x = 3,563,186.45
  5. Step 5: Solve for x
    x = 3,563,186.45/2,087.73
  6. Step 6: Final answer
    x = 1,706.73

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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.