Home / 4,415.87-6,623.81-1,128.97

Finding the Fourth Proportional to 4,415.87, 6,623.81 and 1,128.97

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Solution

The fourth proportional to 4,415.87, 6,623.81 and 1,128.97 is: 1,693.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,415.87 : 6,623.81 = 1,128.97 : x
  2. Step 2: Convert to fraction form
    4,415.87/6,623.81 = 1,128.97/x
  3. Step 3: Cross multiply
    4,415.87x = 6,623.81 × 1,128.97
  4. Step 4: Simplify right side
    4,415.87x = 7,478,044.01
  5. Step 5: Solve for x
    x = 7,478,044.01/4,415.87
  6. Step 6: Final answer
    x = 1,693.45

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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.