Home / 5,153.45-7,730.21-3,409.47

Finding the Fourth Proportional to 5,153.45, 7,730.21 and 3,409.47

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Solution

The fourth proportional to 5,153.45, 7,730.21 and 3,409.47 is: 5,114.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,153.45 : 7,730.21 = 3,409.47 : x
  2. Step 2: Convert to fraction form
    5,153.45/7,730.21 = 3,409.47/x
  3. Step 3: Cross multiply
    5,153.45x = 7,730.21 × 3,409.47
  4. Step 4: Simplify right side
    5,153.45x = 26,355,927.61
  5. Step 5: Solve for x
    x = 26,355,927.61/5,153.45
  6. Step 6: Final answer
    x = 5,114.23

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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.