Home / 5,055.45-6,976.29-2,817.57

Finding the Fourth Proportional to 5,055.45, 6,976.29 and 2,817.57

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Solution

The fourth proportional to 5,055.45, 6,976.29 and 2,817.57 is: 3,888.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,055.45 : 6,976.29 = 2,817.57 : x
  2. Step 2: Convert to fraction form
    5,055.45/6,976.29 = 2,817.57/x
  3. Step 3: Cross multiply
    5,055.45x = 6,976.29 × 2,817.57
  4. Step 4: Simplify right side
    5,055.45x = 19,656,185.42
  5. Step 5: Solve for x
    x = 19,656,185.42/5,055.45
  6. Step 6: Final answer
    x = 3,888.12

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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.