Home / 5,212.78-7,816.86-2,440.24

Finding the Fourth Proportional to 5,212.78, 7,816.86 and 2,440.24

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Solution

The fourth proportional to 5,212.78, 7,816.86 and 2,440.24 is: 3,659.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,212.78 : 7,816.86 = 2,440.24 : x
  2. Step 2: Convert to fraction form
    5,212.78/7,816.86 = 2,440.24/x
  3. Step 3: Cross multiply
    5,212.78x = 7,816.86 × 2,440.24
  4. Step 4: Simplify right side
    5,212.78x = 19,075,014.45
  5. Step 5: Solve for x
    x = 19,075,014.45/5,212.78
  6. Step 6: Final answer
    x = 3,659.28

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1.5x scale

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.