Home / 5,160.80-7,738.86-1,462.16

Finding the Fourth Proportional to 5,160.80, 7,738.86 and 1,462.16

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Solution

The fourth proportional to 5,160.80, 7,738.86 and 1,462.16 is: 2,192.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,160.80 : 7,738.86 = 1,462.16 : x
  2. Step 2: Convert to fraction form
    5,160.80/7,738.86 = 1,462.16/x
  3. Step 3: Cross multiply
    5,160.80x = 7,738.86 × 1,462.16
  4. Step 4: Simplify right side
    5,160.80x = 11,315,412.84
  5. Step 5: Solve for x
    x = 11,315,412.84/5,160.80
  6. Step 6: Final answer
    x = 2,192.57

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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.