Home / 5,409.29-8,126.89-3,465.29

Finding the Fourth Proportional to 5,409.29, 8,126.89 and 3,465.29

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Solution

The fourth proportional to 5,409.29, 8,126.89 and 3,465.29 is: 5,206.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,409.29 : 8,126.89 = 3,465.29 : x
  2. Step 2: Convert to fraction form
    5,409.29/8,126.89 = 3,465.29/x
  3. Step 3: Cross multiply
    5,409.29x = 8,126.89 × 3,465.29
  4. Step 4: Simplify right side
    5,409.29x = 28,161,981.35
  5. Step 5: Solve for x
    x = 28,161,981.35/5,409.29
  6. Step 6: Final answer
    x = 5,206.23

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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.