Home / 2,355.18-3,249.69-1,515.68

Finding the Fourth Proportional to 2,355.18, 3,249.69 and 1,515.68

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Solution

The fourth proportional to 2,355.18, 3,249.69 and 1,515.68 is: 2,091.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,355.18 : 3,249.69 = 1,515.68 : x
  2. Step 2: Convert to fraction form
    2,355.18/3,249.69 = 1,515.68/x
  3. Step 3: Cross multiply
    2,355.18x = 3,249.69 × 1,515.68
  4. Step 4: Simplify right side
    2,355.18x = 4,925,480.39
  5. Step 5: Solve for x
    x = 4,925,480.39/2,355.18
  6. Step 6: Final answer
    x = 2,091.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.