Home / 4,188.60-6,280.32-1,415.01

Finding the Fourth Proportional to 4,188.60, 6,280.32 and 1,415.01

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Solution

The fourth proportional to 4,188.60, 6,280.32 and 1,415.01 is: 2,121.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,188.60 : 6,280.32 = 1,415.01 : x
  2. Step 2: Convert to fraction form
    4,188.60/6,280.32 = 1,415.01/x
  3. Step 3: Cross multiply
    4,188.60x = 6,280.32 × 1,415.01
  4. Step 4: Simplify right side
    4,188.60x = 8,886,715.60
  5. Step 5: Solve for x
    x = 8,886,715.60/4,188.60
  6. Step 6: Final answer
    x = 2,121.64

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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.