Home / 2,247.86-3,355.14-2,109.35

Finding the Fourth Proportional to 2,247.86, 3,355.14 and 2,109.35

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Solution

The fourth proportional to 2,247.86, 3,355.14 and 2,109.35 is: 3,148.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,247.86 : 3,355.14 = 2,109.35 : x
  2. Step 2: Convert to fraction form
    2,247.86/3,355.14 = 2,109.35/x
  3. Step 3: Cross multiply
    2,247.86x = 3,355.14 × 2,109.35
  4. Step 4: Simplify right side
    2,247.86x = 7,077,164.56
  5. Step 5: Solve for x
    x = 7,077,164.56/2,247.86
  6. Step 6: Final answer
    x = 3,148.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.