Home / 3,029.11-4,180.12-1,702.78

Finding the Fourth Proportional to 3,029.11, 4,180.12 and 1,702.78

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Solution

The fourth proportional to 3,029.11, 4,180.12 and 1,702.78 is: 2,349.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,029.11 : 4,180.12 = 1,702.78 : x
  2. Step 2: Convert to fraction form
    3,029.11/4,180.12 = 1,702.78/x
  3. Step 3: Cross multiply
    3,029.11x = 4,180.12 × 1,702.78
  4. Step 4: Simplify right side
    3,029.11x = 7,117,810.03
  5. Step 5: Solve for x
    x = 7,117,810.03/3,029.11
  6. Step 6: Final answer
    x = 2,349.80

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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.