Home / 3,962.18-5,939.35-1,878.50

Finding the Fourth Proportional to 3,962.18, 5,939.35 and 1,878.50

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Solution

The fourth proportional to 3,962.18, 5,939.35 and 1,878.50 is: 2,815.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,962.18 : 5,939.35 = 1,878.50 : x
  2. Step 2: Convert to fraction form
    3,962.18/5,939.35 = 1,878.50/x
  3. Step 3: Cross multiply
    3,962.18x = 5,939.35 × 1,878.50
  4. Step 4: Simplify right side
    3,962.18x = 11,157,068.98
  5. Step 5: Solve for x
    x = 11,157,068.98/3,962.18
  6. Step 6: Final answer
    x = 2,815.89

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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.