Home / 3,409.10-5,113.65-2,113.10

Finding the Fourth Proportional to 3,409.10, 5,113.65 and 2,113.10

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Solution

The fourth proportional to 3,409.10, 5,113.65 and 2,113.10 is: 3,169.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,409.10 : 5,113.65 = 2,113.10 : x
  2. Step 2: Convert to fraction form
    3,409.10/5,113.65 = 2,113.10/x
  3. Step 3: Cross multiply
    3,409.10x = 5,113.65 × 2,113.10
  4. Step 4: Simplify right side
    3,409.10x = 10,805,653.82
  5. Step 5: Solve for x
    x = 10,805,653.82/3,409.10
  6. Step 6: Final answer
    x = 3,169.65

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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.