Home / 4,284.78-6,426.81-1,976.28

Finding the Fourth Proportional to 4,284.78, 6,426.81 and 1,976.28

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Solution

The fourth proportional to 4,284.78, 6,426.81 and 1,976.28 is: 2,964.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,284.78 : 6,426.81 = 1,976.28 : x
  2. Step 2: Convert to fraction form
    4,284.78/6,426.81 = 1,976.28/x
  3. Step 3: Cross multiply
    4,284.78x = 6,426.81 × 1,976.28
  4. Step 4: Simplify right side
    4,284.78x = 12,701,176.07
  5. Step 5: Solve for x
    x = 12,701,176.07/4,284.78
  6. Step 6: Final answer
    x = 2,964.25

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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.