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Finding the Fourth Proportional to 5,055.65, 6,976.83 and 2,817.67

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Solution

The fourth proportional to 5,055.65, 6,976.83 and 2,817.67 is: 3,888.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,055.65 : 6,976.83 = 2,817.67 : x
  2. Step 2: Convert to fraction form
    5,055.65/6,976.83 = 2,817.67/x
  3. Step 3: Cross multiply
    5,055.65x = 6,976.83 × 2,817.67
  4. Step 4: Simplify right side
    5,055.65x = 19,658,401.51
  5. Step 5: Solve for x
    x = 19,658,401.51/5,055.65
  6. Step 6: Final answer
    x = 3,888.40

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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.