Home / 2,078.09-2,863.80-1,487.60

Finding the Fourth Proportional to 2,078.09, 2,863.80 and 1,487.60

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Solution

The fourth proportional to 2,078.09, 2,863.80 and 1,487.60 is: 2,050.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,078.09 : 2,863.80 = 1,487.60 : x
  2. Step 2: Convert to fraction form
    2,078.09/2,863.80 = 1,487.60/x
  3. Step 3: Cross multiply
    2,078.09x = 2,863.80 × 1,487.60
  4. Step 4: Simplify right side
    2,078.09x = 4,260,174.56
  5. Step 5: Solve for x
    x = 4,260,174.56/2,078.09
  6. Step 6: Final answer
    x = 2,050.05

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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.