Home / 2,087.72-2,880.84-1,203.35

Finding the Fourth Proportional to 2,087.72, 2,880.84 and 1,203.35

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Solution

The fourth proportional to 2,087.72, 2,880.84 and 1,203.35 is: 1,660.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,087.72 : 2,880.84 = 1,203.35 : x
  2. Step 2: Convert to fraction form
    2,087.72/2,880.84 = 1,203.35/x
  3. Step 3: Cross multiply
    2,087.72x = 2,880.84 × 1,203.35
  4. Step 4: Simplify right side
    2,087.72x = 3,466,658.81
  5. Step 5: Solve for x
    x = 3,466,658.81/2,087.72
  6. Step 6: Final answer
    x = 1,660.50

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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.