Home / 3,643.10-5,457.45-1,996.70

Finding the Fourth Proportional to 3,643.10, 5,457.45 and 1,996.70

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Solution

The fourth proportional to 3,643.10, 5,457.45 and 1,996.70 is: 2,991.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,643.10 : 5,457.45 = 1,996.70 : x
  2. Step 2: Convert to fraction form
    3,643.10/5,457.45 = 1,996.70/x
  3. Step 3: Cross multiply
    3,643.10x = 5,457.45 × 1,996.70
  4. Step 4: Simplify right side
    3,643.10x = 10,896,890.42
  5. Step 5: Solve for x
    x = 10,896,890.42/3,643.10
  6. Step 6: Final answer
    x = 2,991.10

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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.