Home / 2,087.96-2,881.34-1,143.74

Finding the Fourth Proportional to 2,087.96, 2,881.34 and 1,143.74

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Solution

The fourth proportional to 2,087.96, 2,881.34 and 1,143.74 is: 1,578.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,087.96 : 2,881.34 = 1,143.74 : x
  2. Step 2: Convert to fraction form
    2,087.96/2,881.34 = 1,143.74/x
  3. Step 3: Cross multiply
    2,087.96x = 2,881.34 × 1,143.74
  4. Step 4: Simplify right side
    2,087.96x = 3,295,503.81
  5. Step 5: Solve for x
    x = 3,295,503.81/2,087.96
  6. Step 6: Final answer
    x = 1,578.34

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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.