Home / 7,208.40-10,798.20-4,126.80

Finding the Fourth Proportional to 7,208.40, 10,798.20 and 4,126.80

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Solution

The fourth proportional to 7,208.40, 10,798.20 and 4,126.80 is: 6,181.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,208.40 : 10,798.20 = 4,126.80 : x
  2. Step 2: Convert to fraction form
    7,208.40/10,798.20 = 4,126.80/x
  3. Step 3: Cross multiply
    7,208.40x = 10,798.20 × 4,126.80
  4. Step 4: Simplify right side
    7,208.40x = 44,562,011.76
  5. Step 5: Solve for x
    x = 44,562,011.76/7,208.40
  6. Step 6: Final answer
    x = 6,181.96

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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.