Home / 3,045.05-4,201.43-2,100.53

Finding the Fourth Proportional to 3,045.05, 4,201.43 and 2,100.53

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Solution

The fourth proportional to 3,045.05, 4,201.43 and 2,100.53 is: 2,898.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,045.05 : 4,201.43 = 2,100.53 : x
  2. Step 2: Convert to fraction form
    3,045.05/4,201.43 = 2,100.53/x
  3. Step 3: Cross multiply
    3,045.05x = 4,201.43 × 2,100.53
  4. Step 4: Simplify right side
    3,045.05x = 8,825,253.39
  5. Step 5: Solve for x
    x = 8,825,253.39/3,045.05
  6. Step 6: Final answer
    x = 2,898.23

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Half scale
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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.