Home / 4,638.21-6,400.67-2,648.72

Finding the Fourth Proportional to 4,638.21, 6,400.67 and 2,648.72

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Solution

The fourth proportional to 4,638.21, 6,400.67 and 2,648.72 is: 3,655.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,638.21 : 6,400.67 = 2,648.72 : x
  2. Step 2: Convert to fraction form
    4,638.21/6,400.67 = 2,648.72/x
  3. Step 3: Cross multiply
    4,638.21x = 6,400.67 × 2,648.72
  4. Step 4: Simplify right side
    4,638.21x = 16,953,537.40
  5. Step 5: Solve for x
    x = 16,953,537.40/4,638.21
  6. Step 6: Final answer
    x = 3,655.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.