Home / 4,769.92-7,155.04-1,438.32

Finding the Fourth Proportional to 4,769.92, 7,155.04 and 1,438.32

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Solution

The fourth proportional to 4,769.92, 7,155.04 and 1,438.32 is: 2,157.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,769.92 : 7,155.04 = 1,438.32 : x
  2. Step 2: Convert to fraction form
    4,769.92/7,155.04 = 1,438.32/x
  3. Step 3: Cross multiply
    4,769.92x = 7,155.04 × 1,438.32
  4. Step 4: Simplify right side
    4,769.92x = 10,291,237.13
  5. Step 5: Solve for x
    x = 10,291,237.13/4,769.92
  6. Step 6: Final answer
    x = 2,157.53

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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.