Home / 5,178.68-7,765.63-1,668.04

Finding the Fourth Proportional to 5,178.68, 7,765.63 and 1,668.04

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Solution

The fourth proportional to 5,178.68, 7,765.63 and 1,668.04 is: 2,501.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,178.68 : 7,765.63 = 1,668.04 : x
  2. Step 2: Convert to fraction form
    5,178.68/7,765.63 = 1,668.04/x
  3. Step 3: Cross multiply
    5,178.68x = 7,765.63 × 1,668.04
  4. Step 4: Simplify right side
    5,178.68x = 12,953,381.47
  5. Step 5: Solve for x
    x = 12,953,381.47/5,178.68
  6. Step 6: Final answer
    x = 2,501.29

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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.