Home / 3,433.80-4,738.64-1,861.88

Finding the Fourth Proportional to 3,433.80, 4,738.64 and 1,861.88

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Solution

The fourth proportional to 3,433.80, 4,738.64 and 1,861.88 is: 2,569.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,433.80 : 4,738.64 = 1,861.88 : x
  2. Step 2: Convert to fraction form
    3,433.80/4,738.64 = 1,861.88/x
  3. Step 3: Cross multiply
    3,433.80x = 4,738.64 × 1,861.88
  4. Step 4: Simplify right side
    3,433.80x = 8,822,779.04
  5. Step 5: Solve for x
    x = 8,822,779.04/3,433.80
  6. Step 6: Final answer
    x = 2,569.39

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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.