Home / 4,415.76-6,623.62-1,128.85

Finding the Fourth Proportional to 4,415.76, 6,623.62 and 1,128.85

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Solution

The fourth proportional to 4,415.76, 6,623.62 and 1,128.85 is: 1,693.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,415.76 : 6,623.62 = 1,128.85 : x
  2. Step 2: Convert to fraction form
    4,415.76/6,623.62 = 1,128.85/x
  3. Step 3: Cross multiply
    4,415.76x = 6,623.62 × 1,128.85
  4. Step 4: Simplify right side
    4,415.76x = 7,477,040.32
  5. Step 5: Solve for x
    x = 7,477,040.32/4,415.76
  6. Step 6: Final answer
    x = 1,693.26

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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.