Home / 3,459.23-5,186.00-1,378.34

Finding the Fourth Proportional to 3,459.23, 5,186.00 and 1,378.34

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Solution

The fourth proportional to 3,459.23, 5,186.00 and 1,378.34 is: 2,066.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,459.23 : 5,186.00 = 1,378.34 : x
  2. Step 2: Convert to fraction form
    3,459.23/5,186.00 = 1,378.34/x
  3. Step 3: Cross multiply
    3,459.23x = 5,186.00 × 1,378.34
  4. Step 4: Simplify right side
    3,459.23x = 7,148,038.42
  5. Step 5: Solve for x
    x = 7,148,038.42/3,459.23
  6. Step 6: Final answer
    x = 2,066.37

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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.