Home / 5,130.60-7,696.68-2,208.84

Finding the Fourth Proportional to 5,130.60, 7,696.68 and 2,208.84

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Solution

The fourth proportional to 5,130.60, 7,696.68 and 2,208.84 is: 3,313.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,130.60 : 7,696.68 = 2,208.84 : x
  2. Step 2: Convert to fraction form
    5,130.60/7,696.68 = 2,208.84/x
  3. Step 3: Cross multiply
    5,130.60x = 7,696.68 × 2,208.84
  4. Step 4: Simplify right side
    5,130.60x = 17,000,734.65
  5. Step 5: Solve for x
    x = 17,000,734.65/5,130.60
  6. Step 6: Final answer
    x = 3,313.60

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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.