Home / 5,174.68-7,762.20-1,887.16

Finding the Fourth Proportional to 5,174.68, 7,762.20 and 1,887.16

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Solution

The fourth proportional to 5,174.68, 7,762.20 and 1,887.16 is: 2,830.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,174.68 : 7,762.20 = 1,887.16 : x
  2. Step 2: Convert to fraction form
    5,174.68/7,762.20 = 1,887.16/x
  3. Step 3: Cross multiply
    5,174.68x = 7,762.20 × 1,887.16
  4. Step 4: Simplify right side
    5,174.68x = 14,648,513.35
  5. Step 5: Solve for x
    x = 14,648,513.35/5,174.68
  6. Step 6: Final answer
    x = 2,830.81

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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.