Home / 4,321.25-6,476.40-2,760.65

Finding the Fourth Proportional to 4,321.25, 6,476.40 and 2,760.65

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Solution

The fourth proportional to 4,321.25, 6,476.40 and 2,760.65 is: 4,137.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,321.25 : 6,476.40 = 2,760.65 : x
  2. Step 2: Convert to fraction form
    4,321.25/6,476.40 = 2,760.65/x
  3. Step 3: Cross multiply
    4,321.25x = 6,476.40 × 2,760.65
  4. Step 4: Simplify right side
    4,321.25x = 17,879,041.28
  5. Step 5: Solve for x
    x = 17,879,041.28/4,321.25
  6. Step 6: Final answer
    x = 4,137.47

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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.