Home / 3,555.50-5,335.30-1,912.10

Finding the Fourth Proportional to 3,555.50, 5,335.30 and 1,912.10

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Solution

The fourth proportional to 3,555.50, 5,335.30 and 1,912.10 is: 2,869.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,555.50 : 5,335.30 = 1,912.10 : x
  2. Step 2: Convert to fraction form
    3,555.50/5,335.30 = 1,912.10/x
  3. Step 3: Cross multiply
    3,555.50x = 5,335.30 × 1,912.10
  4. Step 4: Simplify right side
    3,555.50x = 10,201,627.13
  5. Step 5: Solve for x
    x = 10,201,627.13/3,555.50
  6. Step 6: Final answer
    x = 2,869.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.