Home / 6,401.80-8,816.16-4,630.60

Finding the Fourth Proportional to 6,401.80, 8,816.16 and 4,630.60

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Solution

The fourth proportional to 6,401.80, 8,816.16 and 4,630.60 is: 6,376.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,401.80 : 8,816.16 = 4,630.60 : x
  2. Step 2: Convert to fraction form
    6,401.80/8,816.16 = 4,630.60/x
  3. Step 3: Cross multiply
    6,401.80x = 8,816.16 × 4,630.60
  4. Step 4: Simplify right side
    6,401.80x = 40,824,110.50
  5. Step 5: Solve for x
    x = 40,824,110.50/6,401.80
  6. Step 6: Final answer
    x = 6,376.97

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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.