Home / 4,407.45-6,611.15-1,120.50

Finding the Fourth Proportional to 4,407.45, 6,611.15 and 1,120.50

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Solution

The fourth proportional to 4,407.45, 6,611.15 and 1,120.50 is: 1,680.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,407.45 : 6,611.15 = 1,120.50 : x
  2. Step 2: Convert to fraction form
    4,407.45/6,611.15 = 1,120.50/x
  3. Step 3: Cross multiply
    4,407.45x = 6,611.15 × 1,120.50
  4. Step 4: Simplify right side
    4,407.45x = 7,407,787.97
  5. Step 5: Solve for x
    x = 7,407,787.97/4,407.45
  6. Step 6: Final answer
    x = 1,680.74

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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.