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Finding the Fourth Proportional to 2,865.86, 4,303.60 and 2,503.80

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Solution

The fourth proportional to 2,865.86, 4,303.60 and 2,503.80 is: 3,759.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,865.86 : 4,303.60 = 2,503.80 : x
  2. Step 2: Convert to fraction form
    2,865.86/4,303.60 = 2,503.80/x
  3. Step 3: Cross multiply
    2,865.86x = 4,303.60 × 2,503.80
  4. Step 4: Simplify right side
    2,865.86x = 10,775,353.68
  5. Step 5: Solve for x
    x = 10,775,353.68/2,865.86
  6. Step 6: Final answer
    x = 3,759.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.