Home / 5,457.16-8,186.01-1,561.60

Finding the Fourth Proportional to 5,457.16, 8,186.01 and 1,561.60

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Solution

The fourth proportional to 5,457.16, 8,186.01 and 1,561.60 is: 2,342.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,457.16 : 8,186.01 = 1,561.60 : x
  2. Step 2: Convert to fraction form
    5,457.16/8,186.01 = 1,561.60/x
  3. Step 3: Cross multiply
    5,457.16x = 8,186.01 × 1,561.60
  4. Step 4: Simplify right side
    5,457.16x = 12,783,273.22
  5. Step 5: Solve for x
    x = 12,783,273.22/5,457.16
  6. Step 6: Final answer
    x = 2,342.48

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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.