Home / 4,727.16-7,090.74-1,647

Finding the Fourth Proportional to 4,727.16, 7,090.74 and 1,647

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Solution

The fourth proportional to 4,727.16, 7,090.74 and 1,647 is: 2,470.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,727.16 : 7,090.74 = 1,647 : x
  2. Step 2: Convert to fraction form
    4,727.16/7,090.74 = 1,647/x
  3. Step 3: Cross multiply
    4,727.16x = 7,090.74 × 1,647
  4. Step 4: Simplify right side
    4,727.16x = 11,678,448.78
  5. Step 5: Solve for x
    x = 11,678,448.78/4,727.16
  6. Step 6: Final answer
    x = 2,470.50

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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.