Home / 6,312.40-9,469.60-2,152.80

Finding the Fourth Proportional to 6,312.40, 9,469.60 and 2,152.80

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Solution

The fourth proportional to 6,312.40, 9,469.60 and 2,152.80 is: 3,229.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,312.40 : 9,469.60 = 2,152.80 : x
  2. Step 2: Convert to fraction form
    6,312.40/9,469.60 = 2,152.80/x
  3. Step 3: Cross multiply
    6,312.40x = 9,469.60 × 2,152.80
  4. Step 4: Simplify right side
    6,312.40x = 20,386,154.88
  5. Step 5: Solve for x
    x = 20,386,154.88/6,312.40
  6. Step 6: Final answer
    x = 3,229.54

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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.