Home / 3,636.96-5,457.40-1,445.71

Finding the Fourth Proportional to 3,636.96, 5,457.40 and 1,445.71

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Solution

The fourth proportional to 3,636.96, 5,457.40 and 1,445.71 is: 2,169.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,636.96 : 5,457.40 = 1,445.71 : x
  2. Step 2: Convert to fraction form
    3,636.96/5,457.40 = 1,445.71/x
  3. Step 3: Cross multiply
    3,636.96x = 5,457.40 × 1,445.71
  4. Step 4: Simplify right side
    3,636.96x = 7,889,814.14
  5. Step 5: Solve for x
    x = 7,889,814.14/3,636.96
  6. Step 6: Final answer
    x = 2,169.34

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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.