Home / 4,721.40-7,091.64-2,772.36

Finding the Fourth Proportional to 4,721.40, 7,091.64 and 2,772.36

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Solution

The fourth proportional to 4,721.40, 7,091.64 and 2,772.36 is: 4,164.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,721.40 : 7,091.64 = 2,772.36 : x
  2. Step 2: Convert to fraction form
    4,721.40/7,091.64 = 2,772.36/x
  3. Step 3: Cross multiply
    4,721.40x = 7,091.64 × 2,772.36
  4. Step 4: Simplify right side
    4,721.40x = 19,660,579.07
  5. Step 5: Solve for x
    x = 19,660,579.07/4,721.40
  6. Step 6: Final answer
    x = 4,164.14

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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.