Home / 2,087.14-2,880.35-1,155.66

Finding the Fourth Proportional to 2,087.14, 2,880.35 and 1,155.66

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Solution

The fourth proportional to 2,087.14, 2,880.35 and 1,155.66 is: 1,594.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,087.14 : 2,880.35 = 1,155.66 : x
  2. Step 2: Convert to fraction form
    2,087.14/2,880.35 = 1,155.66/x
  3. Step 3: Cross multiply
    2,087.14x = 2,880.35 × 1,155.66
  4. Step 4: Simplify right side
    2,087.14x = 3,328,705.28
  5. Step 5: Solve for x
    x = 3,328,705.28/2,087.14
  6. Step 6: Final answer
    x = 1,594.86

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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.