Home / 4,280.32-6,416.38-2,087.86

Finding the Fourth Proportional to 4,280.32, 6,416.38 and 2,087.86

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Solution

The fourth proportional to 4,280.32, 6,416.38 and 2,087.86 is: 3,129.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,280.32 : 6,416.38 = 2,087.86 : x
  2. Step 2: Convert to fraction form
    4,280.32/6,416.38 = 2,087.86/x
  3. Step 3: Cross multiply
    4,280.32x = 6,416.38 × 2,087.86
  4. Step 4: Simplify right side
    4,280.32x = 13,396,503.15
  5. Step 5: Solve for x
    x = 13,396,503.15/4,280.32
  6. Step 6: Final answer
    x = 3,129.79

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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.