Home / 2,878.34-4,318.11-1,235.06

Finding the Fourth Proportional to 2,878.34, 4,318.11 and 1,235.06

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Solution

The fourth proportional to 2,878.34, 4,318.11 and 1,235.06 is: 1,852.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,878.34 : 4,318.11 = 1,235.06 : x
  2. Step 2: Convert to fraction form
    2,878.34/4,318.11 = 1,235.06/x
  3. Step 3: Cross multiply
    2,878.34x = 4,318.11 × 1,235.06
  4. Step 4: Simplify right side
    2,878.34x = 5,333,124.94
  5. Step 5: Solve for x
    x = 5,333,124.94/2,878.34
  6. Step 6: Final answer
    x = 1,852.85

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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.