Home / 3,368.70-4,649.56-2,187.72

Finding the Fourth Proportional to 3,368.70, 4,649.56 and 2,187.72

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Solution

The fourth proportional to 3,368.70, 4,649.56 and 2,187.72 is: 3,019.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,368.70 : 4,649.56 = 2,187.72 : x
  2. Step 2: Convert to fraction form
    3,368.70/4,649.56 = 2,187.72/x
  3. Step 3: Cross multiply
    3,368.70x = 4,649.56 × 2,187.72
  4. Step 4: Simplify right side
    3,368.70x = 10,171,935.40
  5. Step 5: Solve for x
    x = 10,171,935.40/3,368.70
  6. Step 6: Final answer
    x = 3,019.54

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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.