Home / 4,275.78-6,415.23-2,196.30

Finding the Fourth Proportional to 4,275.78, 6,415.23 and 2,196.30

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Solution

The fourth proportional to 4,275.78, 6,415.23 and 2,196.30 is: 3,295.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,275.78 : 6,415.23 = 2,196.30 : x
  2. Step 2: Convert to fraction form
    4,275.78/6,415.23 = 2,196.30/x
  3. Step 3: Cross multiply
    4,275.78x = 6,415.23 × 2,196.30
  4. Step 4: Simplify right side
    4,275.78x = 14,089,769.65
  5. Step 5: Solve for x
    x = 14,089,769.65/4,275.78
  6. Step 6: Final answer
    x = 3,295.25

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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.