Home / 4,276.91-6,415.36-1,645.65

Finding the Fourth Proportional to 4,276.91, 6,415.36 and 1,645.65

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Solution

The fourth proportional to 4,276.91, 6,415.36 and 1,645.65 is: 2,468.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,276.91 : 6,415.36 = 1,645.65 : x
  2. Step 2: Convert to fraction form
    4,276.91/6,415.36 = 1,645.65/x
  3. Step 3: Cross multiply
    4,276.91x = 6,415.36 × 1,645.65
  4. Step 4: Simplify right side
    4,276.91x = 10,557,433.71
  5. Step 5: Solve for x
    x = 10,557,433.71/4,276.91
  6. Step 6: Final answer
    x = 2,468.47

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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.