Home / 2,087.25-2,880.62-1,155.75

Finding the Fourth Proportional to 2,087.25, 2,880.62 and 1,155.75

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Solution

The fourth proportional to 2,087.25, 2,880.62 and 1,155.75 is: 1,595.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,087.25 : 2,880.62 = 1,155.75 : x
  2. Step 2: Convert to fraction form
    2,087.25/2,880.62 = 1,155.75/x
  3. Step 3: Cross multiply
    2,087.25x = 2,880.62 × 1,155.75
  4. Step 4: Simplify right side
    2,087.25x = 3,329,270.79
  5. Step 5: Solve for x
    x = 3,329,270.79/2,087.25
  6. Step 6: Final answer
    x = 1,595.05

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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.