Home / 2,878.34-4,318.82-1,396.76

Finding the Fourth Proportional to 2,878.34, 4,318.82 and 1,396.76

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Solution

The fourth proportional to 2,878.34, 4,318.82 and 1,396.76 is: 2,095.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,878.34 : 4,318.82 = 1,396.76 : x
  2. Step 2: Convert to fraction form
    2,878.34/4,318.82 = 1,396.76/x
  3. Step 3: Cross multiply
    2,878.34x = 4,318.82 × 1,396.76
  4. Step 4: Simplify right side
    2,878.34x = 6,032,326.45
  5. Step 5: Solve for x
    x = 6,032,326.45/2,878.34
  6. Step 6: Final answer
    x = 2,095.77

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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.