Home / 3,146.54-4,342.37-1,820.66

Finding the Fourth Proportional to 3,146.54, 4,342.37 and 1,820.66

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Solution

The fourth proportional to 3,146.54, 4,342.37 and 1,820.66 is: 2,512.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,146.54 : 4,342.37 = 1,820.66 : x
  2. Step 2: Convert to fraction form
    3,146.54/4,342.37 = 1,820.66/x
  3. Step 3: Cross multiply
    3,146.54x = 4,342.37 × 1,820.66
  4. Step 4: Simplify right side
    3,146.54x = 7,905,948.55
  5. Step 5: Solve for x
    x = 7,905,948.55/3,146.54
  6. Step 6: Final answer
    x = 2,512.59

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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.