Home / 3,421.42-5,127.71-1,545.93

Finding the Fourth Proportional to 3,421.42, 5,127.71 and 1,545.93

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Solution

The fourth proportional to 3,421.42, 5,127.71 and 1,545.93 is: 2,316.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,421.42 : 5,127.71 = 1,545.93 : x
  2. Step 2: Convert to fraction form
    3,421.42/5,127.71 = 1,545.93/x
  3. Step 3: Cross multiply
    3,421.42x = 5,127.71 × 1,545.93
  4. Step 4: Simplify right side
    3,421.42x = 7,927,072.99
  5. Step 5: Solve for x
    x = 7,927,072.99/3,421.42
  6. Step 6: Final answer
    x = 2,316.90

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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.