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Finding the Fourth Proportional to 2,495.70, 3,445.30 and 1,934.90

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Solution

The fourth proportional to 2,495.70, 3,445.30 and 1,934.90 is: 2,671.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,495.70 : 3,445.30 = 1,934.90 : x
  2. Step 2: Convert to fraction form
    2,495.70/3,445.30 = 1,934.90/x
  3. Step 3: Cross multiply
    2,495.70x = 3,445.30 × 1,934.90
  4. Step 4: Simplify right side
    2,495.70x = 6,666,310.97
  5. Step 5: Solve for x
    x = 6,666,310.97/2,495.70
  6. Step 6: Final answer
    x = 2,671.12

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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.