Home / 4,756.56-7,128.36-2,908.32

Finding the Fourth Proportional to 4,756.56, 7,128.36 and 2,908.32

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Solution

The fourth proportional to 4,756.56, 7,128.36 and 2,908.32 is: 4,358.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,756.56 : 7,128.36 = 2,908.32 : x
  2. Step 2: Convert to fraction form
    4,756.56/7,128.36 = 2,908.32/x
  3. Step 3: Cross multiply
    4,756.56x = 7,128.36 × 2,908.32
  4. Step 4: Simplify right side
    4,756.56x = 20,731,551.96
  5. Step 5: Solve for x
    x = 20,731,551.96/4,756.56
  6. Step 6: Final answer
    x = 4,358.52

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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.