Home / 4,420-6,613.64-2,666.02

Finding the Fourth Proportional to 4,420, 6,613.64 and 2,666.02

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Solution

The fourth proportional to 4,420, 6,613.64 and 2,666.02 is: 3,989.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,420 : 6,613.64 = 2,666.02 : x
  2. Step 2: Convert to fraction form
    4,420/6,613.64 = 2,666.02/x
  3. Step 3: Cross multiply
    4,420x = 6,613.64 × 2,666.02
  4. Step 4: Simplify right side
    4,420x = 17,632,096.51
  5. Step 5: Solve for x
    x = 17,632,096.51/4,420
  6. Step 6: Final answer
    x = 3,989.16

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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.