Home / 5,055.72-6,976.80-2,817.69

Finding the Fourth Proportional to 5,055.72, 6,976.80 and 2,817.69

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Solution

The fourth proportional to 5,055.72, 6,976.80 and 2,817.69 is: 3,888.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,055.72 : 6,976.80 = 2,817.69 : x
  2. Step 2: Convert to fraction form
    5,055.72/6,976.80 = 2,817.69/x
  3. Step 3: Cross multiply
    5,055.72x = 6,976.80 × 2,817.69
  4. Step 4: Simplify right side
    5,055.72x = 19,658,433.43
  5. Step 5: Solve for x
    x = 19,658,433.43/5,055.72
  6. Step 6: Final answer
    x = 3,888.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.