Home / 3,543.20-4,889.58-1,949.80

Finding the Fourth Proportional to 3,543.20, 4,889.58 and 1,949.80

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Solution

The fourth proportional to 3,543.20, 4,889.58 and 1,949.80 is: 2,690.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,543.20 : 4,889.58 = 1,949.80 : x
  2. Step 2: Convert to fraction form
    3,543.20/4,889.58 = 1,949.80/x
  3. Step 3: Cross multiply
    3,543.20x = 4,889.58 × 1,949.80
  4. Step 4: Simplify right side
    3,543.20x = 9,533,703.08
  5. Step 5: Solve for x
    x = 9,533,703.08/3,543.20
  6. Step 6: Final answer
    x = 2,690.70

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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.