Home / 4,722.71-7,078.59-2,776.28

Finding the Fourth Proportional to 4,722.71, 7,078.59 and 2,776.28

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Solution

The fourth proportional to 4,722.71, 7,078.59 and 2,776.28 is: 4,161.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,722.71 : 7,078.59 = 2,776.28 : x
  2. Step 2: Convert to fraction form
    4,722.71/7,078.59 = 2,776.28/x
  3. Step 3: Cross multiply
    4,722.71x = 7,078.59 × 2,776.28
  4. Step 4: Simplify right side
    4,722.71x = 19,652,112.45
  5. Step 5: Solve for x
    x = 19,652,112.45/4,722.71
  6. Step 6: Final answer
    x = 4,161.20

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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.