Home / 3,240.45-4,861.08-1,292.67

Finding the Fourth Proportional to 3,240.45, 4,861.08 and 1,292.67

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Solution

The fourth proportional to 3,240.45, 4,861.08 and 1,292.67 is: 1,939.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,240.45 : 4,861.08 = 1,292.67 : x
  2. Step 2: Convert to fraction form
    3,240.45/4,861.08 = 1,292.67/x
  3. Step 3: Cross multiply
    3,240.45x = 4,861.08 × 1,292.67
  4. Step 4: Simplify right side
    3,240.45x = 6,283,772.28
  5. Step 5: Solve for x
    x = 6,283,772.28/3,240.45
  6. Step 6: Final answer
    x = 1,939.17

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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.