Home / 7,178.88-10,762.56-2,736.32

Finding the Fourth Proportional to 7,178.88, 10,762.56 and 2,736.32

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Solution

The fourth proportional to 7,178.88, 10,762.56 and 2,736.32 is: 4,102.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,178.88 : 10,762.56 = 2,736.32 : x
  2. Step 2: Convert to fraction form
    7,178.88/10,762.56 = 2,736.32/x
  3. Step 3: Cross multiply
    7,178.88x = 10,762.56 × 2,736.32
  4. Step 4: Simplify right side
    7,178.88x = 29,449,808.18
  5. Step 5: Solve for x
    x = 29,449,808.18/7,178.88
  6. Step 6: Final answer
    x = 4,102.28

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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.