Home / 5,457.89-8,188.02-3,119.01

Finding the Fourth Proportional to 5,457.89, 8,188.02 and 3,119.01

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Solution

The fourth proportional to 5,457.89, 8,188.02 and 3,119.01 is: 4,679.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,457.89 : 8,188.02 = 3,119.01 : x
  2. Step 2: Convert to fraction form
    5,457.89/8,188.02 = 3,119.01/x
  3. Step 3: Cross multiply
    5,457.89x = 8,188.02 × 3,119.01
  4. Step 4: Simplify right side
    5,457.89x = 25,538,516.26
  5. Step 5: Solve for x
    x = 25,538,516.26/5,457.89
  6. Step 6: Final answer
    x = 4,679.20

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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.