Home / 5,457.52-8,186.64-1,561.84

Finding the Fourth Proportional to 5,457.52, 8,186.64 and 1,561.84

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Solution

The fourth proportional to 5,457.52, 8,186.64 and 1,561.84 is: 2,342.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,457.52 : 8,186.64 = 1,561.84 : x
  2. Step 2: Convert to fraction form
    5,457.52/8,186.64 = 1,561.84/x
  3. Step 3: Cross multiply
    5,457.52x = 8,186.64 × 1,561.84
  4. Step 4: Simplify right side
    5,457.52x = 12,786,221.82
  5. Step 5: Solve for x
    x = 12,786,221.82/5,457.52
  6. Step 6: Final answer
    x = 2,342.86

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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.