Home / 3,649.40-5,034.37-2,156.60

Finding the Fourth Proportional to 3,649.40, 5,034.37 and 2,156.60

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Solution

The fourth proportional to 3,649.40, 5,034.37 and 2,156.60 is: 2,975.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,649.40 : 5,034.37 = 2,156.60 : x
  2. Step 2: Convert to fraction form
    3,649.40/5,034.37 = 2,156.60/x
  3. Step 3: Cross multiply
    3,649.40x = 5,034.37 × 2,156.60
  4. Step 4: Simplify right side
    3,649.40x = 10,857,122.34
  5. Step 5: Solve for x
    x = 10,857,122.34/3,649.40
  6. Step 6: Final answer
    x = 2,975.04

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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.