Home / 5,155.84-7,725.92-3,418.24

Finding the Fourth Proportional to 5,155.84, 7,725.92 and 3,418.24

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Solution

The fourth proportional to 5,155.84, 7,725.92 and 3,418.24 is: 5,122.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,155.84 : 7,725.92 = 3,418.24 : x
  2. Step 2: Convert to fraction form
    5,155.84/7,725.92 = 3,418.24/x
  3. Step 3: Cross multiply
    5,155.84x = 7,725.92 × 3,418.24
  4. Step 4: Simplify right side
    5,155.84x = 26,409,048.78
  5. Step 5: Solve for x
    x = 26,409,048.78/5,155.84
  6. Step 6: Final answer
    x = 5,122.16

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1.5x scale

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.