Home / 3,861.77-5,329.81-2,445.58

Finding the Fourth Proportional to 3,861.77, 5,329.81 and 2,445.58

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Solution

The fourth proportional to 3,861.77, 5,329.81 and 2,445.58 is: 3,375.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,861.77 : 5,329.81 = 2,445.58 : x
  2. Step 2: Convert to fraction form
    3,861.77/5,329.81 = 2,445.58/x
  3. Step 3: Cross multiply
    3,861.77x = 5,329.81 × 2,445.58
  4. Step 4: Simplify right side
    3,861.77x = 13,034,482.70
  5. Step 5: Solve for x
    x = 13,034,482.70/3,861.77
  6. Step 6: Final answer
    x = 3,375.26

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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.