Home / 4,989.32-6,880.84-4,099.92

Finding the Fourth Proportional to 4,989.32, 6,880.84 and 4,099.92

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Solution

The fourth proportional to 4,989.32, 6,880.84 and 4,099.92 is: 5,654.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,989.32 : 6,880.84 = 4,099.92 : x
  2. Step 2: Convert to fraction form
    4,989.32/6,880.84 = 4,099.92/x
  3. Step 3: Cross multiply
    4,989.32x = 6,880.84 × 4,099.92
  4. Step 4: Simplify right side
    4,989.32x = 28,210,893.53
  5. Step 5: Solve for x
    x = 28,210,893.53/4,989.32
  6. Step 6: Final answer
    x = 5,654.26

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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.