Home / 4,681.32-7,021.98-1,218.54

Finding the Fourth Proportional to 4,681.32, 7,021.98 and 1,218.54

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Solution

The fourth proportional to 4,681.32, 7,021.98 and 1,218.54 is: 1,827.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,681.32 : 7,021.98 = 1,218.54 : x
  2. Step 2: Convert to fraction form
    4,681.32/7,021.98 = 1,218.54/x
  3. Step 3: Cross multiply
    4,681.32x = 7,021.98 × 1,218.54
  4. Step 4: Simplify right side
    4,681.32x = 8,556,563.51
  5. Step 5: Solve for x
    x = 8,556,563.51/4,681.32
  6. Step 6: Final answer
    x = 1,827.81

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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.