Home / 3,847.96-5,312.70-2,962.12

Finding the Fourth Proportional to 3,847.96, 5,312.70 and 2,962.12

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Solution

The fourth proportional to 3,847.96, 5,312.70 and 2,962.12 is: 4,089.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,847.96 : 5,312.70 = 2,962.12 : x
  2. Step 2: Convert to fraction form
    3,847.96/5,312.70 = 2,962.12/x
  3. Step 3: Cross multiply
    3,847.96x = 5,312.70 × 2,962.12
  4. Step 4: Simplify right side
    3,847.96x = 15,736,854.92
  5. Step 5: Solve for x
    x = 15,736,854.92/3,847.96
  6. Step 6: Final answer
    x = 4,089.66

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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.