Home / 3,614.16-5,419.88-1,421.69

Finding the Fourth Proportional to 3,614.16, 5,419.88 and 1,421.69

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Solution

The fourth proportional to 3,614.16, 5,419.88 and 1,421.69 is: 2,132.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,614.16 : 5,419.88 = 1,421.69 : x
  2. Step 2: Convert to fraction form
    3,614.16/5,419.88 = 1,421.69/x
  3. Step 3: Cross multiply
    3,614.16x = 5,419.88 × 1,421.69
  4. Step 4: Simplify right side
    3,614.16x = 7,705,389.20
  5. Step 5: Solve for x
    x = 7,705,389.20/3,614.16
  6. Step 6: Final answer
    x = 2,132.00

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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.