Home / 7,491.68-11,235.12-3,106.80

Finding the Fourth Proportional to 7,491.68, 11,235.12 and 3,106.80

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Solution

The fourth proportional to 7,491.68, 11,235.12 and 3,106.80 is: 4,659.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,491.68 : 11,235.12 = 3,106.80 : x
  2. Step 2: Convert to fraction form
    7,491.68/11,235.12 = 3,106.80/x
  3. Step 3: Cross multiply
    7,491.68x = 11,235.12 × 3,106.80
  4. Step 4: Simplify right side
    7,491.68x = 34,905,270.82
  5. Step 5: Solve for x
    x = 34,905,270.82/7,491.68
  6. Step 6: Final answer
    x = 4,659.20

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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.