Home / 2,087.46-2,880.74-1,143.32

Finding the Fourth Proportional to 2,087.46, 2,880.74 and 1,143.32

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Solution

The fourth proportional to 2,087.46, 2,880.74 and 1,143.32 is: 1,577.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,087.46 : 2,880.74 = 1,143.32 : x
  2. Step 2: Convert to fraction form
    2,087.46/2,880.74 = 1,143.32/x
  3. Step 3: Cross multiply
    2,087.46x = 2,880.74 × 1,143.32
  4. Step 4: Simplify right side
    2,087.46x = 3,293,596.11
  5. Step 5: Solve for x
    x = 3,293,596.11/2,087.46
  6. Step 6: Final answer
    x = 1,577.80

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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.