Home / 4,284.72-6,429.96-1,976.28

Finding the Fourth Proportional to 4,284.72, 6,429.96 and 1,976.28

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Solution

The fourth proportional to 4,284.72, 6,429.96 and 1,976.28 is: 2,965.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,284.72 : 6,429.96 = 1,976.28 : x
  2. Step 2: Convert to fraction form
    4,284.72/6,429.96 = 1,976.28/x
  3. Step 3: Cross multiply
    4,284.72x = 6,429.96 × 1,976.28
  4. Step 4: Simplify right side
    4,284.72x = 12,707,401.35
  5. Step 5: Solve for x
    x = 12,707,401.35/4,284.72
  6. Step 6: Final answer
    x = 2,965.75

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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.