Home / 2,087.67-2,880.69-1,203.31

Finding the Fourth Proportional to 2,087.67, 2,880.69 and 1,203.31

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Solution

The fourth proportional to 2,087.67, 2,880.69 and 1,203.31 is: 1,660.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,087.67 : 2,880.69 = 1,203.31 : x
  2. Step 2: Convert to fraction form
    2,087.67/2,880.69 = 1,203.31/x
  3. Step 3: Cross multiply
    2,087.67x = 2,880.69 × 1,203.31
  4. Step 4: Simplify right side
    2,087.67x = 3,466,349.35
  5. Step 5: Solve for x
    x = 3,466,349.35/2,087.67
  6. Step 6: Final answer
    x = 1,660.39

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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.