Home / 4,428-6,638.67-2,673.60

Finding the Fourth Proportional to 4,428, 6,638.67 and 2,673.60

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Solution

The fourth proportional to 4,428, 6,638.67 and 2,673.60 is: 4,008.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,428 : 6,638.67 = 2,673.60 : x
  2. Step 2: Convert to fraction form
    4,428/6,638.67 = 2,673.60/x
  3. Step 3: Cross multiply
    4,428x = 6,638.67 × 2,673.60
  4. Step 4: Simplify right side
    4,428x = 17,749,148.11
  5. Step 5: Solve for x
    x = 17,749,148.11/4,428
  6. Step 6: Final answer
    x = 4,008.39

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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.