Home / 3,644.96-5,457.68-1,909.92

Finding the Fourth Proportional to 3,644.96, 5,457.68 and 1,909.92

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Solution

The fourth proportional to 3,644.96, 5,457.68 and 1,909.92 is: 2,859.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,644.96 : 5,457.68 = 1,909.92 : x
  2. Step 2: Convert to fraction form
    3,644.96/5,457.68 = 1,909.92/x
  3. Step 3: Cross multiply
    3,644.96x = 5,457.68 × 1,909.92
  4. Step 4: Simplify right side
    3,644.96x = 10,423,732.19
  5. Step 5: Solve for x
    x = 10,423,732.19/3,644.96
  6. Step 6: Final answer
    x = 2,859.77

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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.