Home / 6,990.22-10,480.40-2,829

Finding the Fourth Proportional to 6,990.22, 10,480.40 and 2,829

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Solution

The fourth proportional to 6,990.22, 10,480.40 and 2,829 is: 4,241.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,990.22 : 10,480.40 = 2,829 : x
  2. Step 2: Convert to fraction form
    6,990.22/10,480.40 = 2,829/x
  3. Step 3: Cross multiply
    6,990.22x = 10,480.40 × 2,829
  4. Step 4: Simplify right side
    6,990.22x = 29,649,051.60
  5. Step 5: Solve for x
    x = 29,649,051.60/6,990.22
  6. Step 6: Final answer
    x = 4,241.50

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1.5x scale

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.