Home / 3,157.58-4,353.61-2,876.65

Finding the Fourth Proportional to 3,157.58, 4,353.61 and 2,876.65

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Solution

The fourth proportional to 3,157.58, 4,353.61 and 2,876.65 is: 3,966.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,157.58 : 4,353.61 = 2,876.65 : x
  2. Step 2: Convert to fraction form
    3,157.58/4,353.61 = 2,876.65/x
  3. Step 3: Cross multiply
    3,157.58x = 4,353.61 × 2,876.65
  4. Step 4: Simplify right side
    3,157.58x = 12,523,812.21
  5. Step 5: Solve for x
    x = 12,523,812.21/3,157.58
  6. Step 6: Final answer
    x = 3,966.27

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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.