Home / 2,863.45-3,951.37-1,587.25

Finding the Fourth Proportional to 2,863.45, 3,951.37 and 1,587.25

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Solution

The fourth proportional to 2,863.45, 3,951.37 and 1,587.25 is: 2,190.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,863.45 : 3,951.37 = 1,587.25 : x
  2. Step 2: Convert to fraction form
    2,863.45/3,951.37 = 1,587.25/x
  3. Step 3: Cross multiply
    2,863.45x = 3,951.37 × 1,587.25
  4. Step 4: Simplify right side
    2,863.45x = 6,271,812.03
  5. Step 5: Solve for x
    x = 6,271,812.03/2,863.45
  6. Step 6: Final answer
    x = 2,190.30

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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.