Home / 3,421.37-5,127.60-1,545.87

Finding the Fourth Proportional to 3,421.37, 5,127.60 and 1,545.87

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Solution

The fourth proportional to 3,421.37, 5,127.60 and 1,545.87 is: 2,316.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,421.37 : 5,127.60 = 1,545.87 : x
  2. Step 2: Convert to fraction form
    3,421.37/5,127.60 = 1,545.87/x
  3. Step 3: Cross multiply
    3,421.37x = 5,127.60 × 1,545.87
  4. Step 4: Simplify right side
    3,421.37x = 7,926,603.01
  5. Step 5: Solve for x
    x = 7,926,603.01/3,421.37
  6. Step 6: Final answer
    x = 2,316.79

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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.