Home / 5,513.20-8,269.80-5,440.30

Finding the Fourth Proportional to 5,513.20, 8,269.80 and 5,440.30

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Solution

The fourth proportional to 5,513.20, 8,269.80 and 5,440.30 is: 8,160.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,513.20 : 8,269.80 = 5,440.30 : x
  2. Step 2: Convert to fraction form
    5,513.20/8,269.80 = 5,440.30/x
  3. Step 3: Cross multiply
    5,513.20x = 8,269.80 × 5,440.30
  4. Step 4: Simplify right side
    5,513.20x = 44,990,192.94
  5. Step 5: Solve for x
    x = 44,990,192.94/5,513.20
  6. Step 6: Final answer
    x = 8,160.45

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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.