Home / 2,087.66-2,880.97-1,143.45

Finding the Fourth Proportional to 2,087.66, 2,880.97 and 1,143.45

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Solution

The fourth proportional to 2,087.66, 2,880.97 and 1,143.45 is: 1,577.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,087.66 : 2,880.97 = 1,143.45 : x
  2. Step 2: Convert to fraction form
    2,087.66/2,880.97 = 1,143.45/x
  3. Step 3: Cross multiply
    2,087.66x = 2,880.97 × 1,143.45
  4. Step 4: Simplify right side
    2,087.66x = 3,294,242.29
  5. Step 5: Solve for x
    x = 3,294,242.29/2,087.66
  6. Step 6: Final answer
    x = 1,577.96

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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.