Home / 6,361.20-8,778.48-3,528.84

Finding the Fourth Proportional to 6,361.20, 8,778.48 and 3,528.84

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Solution

The fourth proportional to 6,361.20, 8,778.48 and 3,528.84 is: 4,869.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,361.20 : 8,778.48 = 3,528.84 : x
  2. Step 2: Convert to fraction form
    6,361.20/8,778.48 = 3,528.84/x
  3. Step 3: Cross multiply
    6,361.20x = 8,778.48 × 3,528.84
  4. Step 4: Simplify right side
    6,361.20x = 30,977,807.47
  5. Step 5: Solve for x
    x = 30,977,807.47/6,361.20
  6. Step 6: Final answer
    x = 4,869.81

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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.