Home / 3,955.02-5,457.96-2,186.66

Finding the Fourth Proportional to 3,955.02, 5,457.96 and 2,186.66

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Solution

The fourth proportional to 3,955.02, 5,457.96 and 2,186.66 is: 3,017.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,955.02 : 5,457.96 = 2,186.66 : x
  2. Step 2: Convert to fraction form
    3,955.02/5,457.96 = 2,186.66/x
  3. Step 3: Cross multiply
    3,955.02x = 5,457.96 × 2,186.66
  4. Step 4: Simplify right side
    3,955.02x = 11,934,675.52
  5. Step 5: Solve for x
    x = 11,934,675.52/3,955.02
  6. Step 6: Final answer
    x = 3,017.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.