Home / 3,240.56-4,861.86-1,019.30

Finding the Fourth Proportional to 3,240.56, 4,861.86 and 1,019.30

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Solution

The fourth proportional to 3,240.56, 4,861.86 and 1,019.30 is: 1,529.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,240.56 : 4,861.86 = 1,019.30 : x
  2. Step 2: Convert to fraction form
    3,240.56/4,861.86 = 1,019.30/x
  3. Step 3: Cross multiply
    3,240.56x = 4,861.86 × 1,019.30
  4. Step 4: Simplify right side
    3,240.56x = 4,955,693.11
  5. Step 5: Solve for x
    x = 4,955,693.11/3,240.56
  6. Step 6: Final answer
    x = 1,529.27

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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.