Home / 3,457.02-5,186.43-1,813.12

Finding the Fourth Proportional to 3,457.02, 5,186.43 and 1,813.12

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Solution

The fourth proportional to 3,457.02, 5,186.43 and 1,813.12 is: 2,720.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,457.02 : 5,186.43 = 1,813.12 : x
  2. Step 2: Convert to fraction form
    3,457.02/5,186.43 = 1,813.12/x
  3. Step 3: Cross multiply
    3,457.02x = 5,186.43 × 1,813.12
  4. Step 4: Simplify right side
    3,457.02x = 9,403,619.96
  5. Step 5: Solve for x
    x = 9,403,619.96/3,457.02
  6. Step 6: Final answer
    x = 2,720.15

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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.