Home / 2,088.10-2,880.92-1,203.78

Finding the Fourth Proportional to 2,088.10, 2,880.92 and 1,203.78

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Solution

The fourth proportional to 2,088.10, 2,880.92 and 1,203.78 is: 1,660.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,088.10 : 2,880.92 = 1,203.78 : x
  2. Step 2: Convert to fraction form
    2,088.10/2,880.92 = 1,203.78/x
  3. Step 3: Cross multiply
    2,088.10x = 2,880.92 × 1,203.78
  4. Step 4: Simplify right side
    2,088.10x = 3,467,993.88
  5. Step 5: Solve for x
    x = 3,467,993.88/2,088.10
  6. Step 6: Final answer
    x = 1,660.84

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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.