Home / 2,920.56-4,030.44-1,661.46

Finding the Fourth Proportional to 2,920.56, 4,030.44 and 1,661.46

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Solution

The fourth proportional to 2,920.56, 4,030.44 and 1,661.46 is: 2,292.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,920.56 : 4,030.44 = 1,661.46 : x
  2. Step 2: Convert to fraction form
    2,920.56/4,030.44 = 1,661.46/x
  3. Step 3: Cross multiply
    2,920.56x = 4,030.44 × 1,661.46
  4. Step 4: Simplify right side
    2,920.56x = 6,696,414.84
  5. Step 5: Solve for x
    x = 6,696,414.84/2,920.56
  6. Step 6: Final answer
    x = 2,292.85

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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.