Home / 5,680.40-8,520.60-4,113.05

Finding the Fourth Proportional to 5,680.40, 8,520.60 and 4,113.05

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Solution

The fourth proportional to 5,680.40, 8,520.60 and 4,113.05 is: 6,169.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,680.40 : 8,520.60 = 4,113.05 : x
  2. Step 2: Convert to fraction form
    5,680.40/8,520.60 = 4,113.05/x
  3. Step 3: Cross multiply
    5,680.40x = 8,520.60 × 4,113.05
  4. Step 4: Simplify right side
    5,680.40x = 35,045,653.83
  5. Step 5: Solve for x
    x = 35,045,653.83/5,680.40
  6. Step 6: Final answer
    x = 6,169.58

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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.