Home / 5,457.32-8,186.51-2,169.68

Finding the Fourth Proportional to 5,457.32, 8,186.51 and 2,169.68

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Solution

The fourth proportional to 5,457.32, 8,186.51 and 2,169.68 is: 3,254.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,457.32 : 8,186.51 = 2,169.68 : x
  2. Step 2: Convert to fraction form
    5,457.32/8,186.51 = 2,169.68/x
  3. Step 3: Cross multiply
    5,457.32x = 8,186.51 × 2,169.68
  4. Step 4: Simplify right side
    5,457.32x = 17,762,055.24
  5. Step 5: Solve for x
    x = 17,762,055.24/5,457.32
  6. Step 6: Final answer
    x = 3,254.72

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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.