Home / 5,457.11-8,186.11-2,645.13

Finding the Fourth Proportional to 5,457.11, 8,186.11 and 2,645.13

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Solution

The fourth proportional to 5,457.11, 8,186.11 and 2,645.13 is: 3,967.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,457.11 : 8,186.11 = 2,645.13 : x
  2. Step 2: Convert to fraction form
    5,457.11/8,186.11 = 2,645.13/x
  3. Step 3: Cross multiply
    5,457.11x = 8,186.11 × 2,645.13
  4. Step 4: Simplify right side
    5,457.11x = 21,653,318.53
  5. Step 5: Solve for x
    x = 21,653,318.53/5,457.11
  6. Step 6: Final answer
    x = 3,967.91

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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.