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Finding the Fourth Proportional to 3,313.92, 4,968.72 and 1,853.76

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Solution

The fourth proportional to 3,313.92, 4,968.72 and 1,853.76 is: 2,779.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,313.92 : 4,968.72 = 1,853.76 : x
  2. Step 2: Convert to fraction form
    3,313.92/4,968.72 = 1,853.76/x
  3. Step 3: Cross multiply
    3,313.92x = 4,968.72 × 1,853.76
  4. Step 4: Simplify right side
    3,313.92x = 9,210,814.39
  5. Step 5: Solve for x
    x = 9,210,814.39/3,313.92
  6. Step 6: Final answer
    x = 2,779.43

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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.