Home / 3,638.36-5,457.54-1,329.32

Finding the Fourth Proportional to 3,638.36, 5,457.54 and 1,329.32

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Solution

The fourth proportional to 3,638.36, 5,457.54 and 1,329.32 is: 1,993.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,638.36 : 5,457.54 = 1,329.32 : x
  2. Step 2: Convert to fraction form
    3,638.36/5,457.54 = 1,329.32/x
  3. Step 3: Cross multiply
    3,638.36x = 5,457.54 × 1,329.32
  4. Step 4: Simplify right side
    3,638.36x = 7,254,817.07
  5. Step 5: Solve for x
    x = 7,254,817.07/3,638.36
  6. Step 6: Final answer
    x = 1,993.98

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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.