Home / 3,111.64-4,294.07-1,714.39

Finding the Fourth Proportional to 3,111.64, 4,294.07 and 1,714.39

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Solution

The fourth proportional to 3,111.64, 4,294.07 and 1,714.39 is: 2,365.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,111.64 : 4,294.07 = 1,714.39 : x
  2. Step 2: Convert to fraction form
    3,111.64/4,294.07 = 1,714.39/x
  3. Step 3: Cross multiply
    3,111.64x = 4,294.07 × 1,714.39
  4. Step 4: Simplify right side
    3,111.64x = 7,361,702.10
  5. Step 5: Solve for x
    x = 7,361,702.10/3,111.64
  6. Step 6: Final answer
    x = 2,365.86

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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.