Home / 4,638.80-6,401.96-2,649.36

Finding the Fourth Proportional to 4,638.80, 6,401.96 and 2,649.36

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Solution

The fourth proportional to 4,638.80, 6,401.96 and 2,649.36 is: 3,656.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,638.80 : 6,401.96 = 2,649.36 : x
  2. Step 2: Convert to fraction form
    4,638.80/6,401.96 = 2,649.36/x
  3. Step 3: Cross multiply
    4,638.80x = 6,401.96 × 2,649.36
  4. Step 4: Simplify right side
    4,638.80x = 16,961,096.75
  5. Step 5: Solve for x
    x = 16,961,096.75/4,638.80
  6. Step 6: Final answer
    x = 3,656.35

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1.5x scale

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.