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Finding the Fourth Proportional to 2,493.38, 3,440.80 and 1,445.38

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Solution

The fourth proportional to 2,493.38, 3,440.80 and 1,445.38 is: 1,994.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,493.38 : 3,440.80 = 1,445.38 : x
  2. Step 2: Convert to fraction form
    2,493.38/3,440.80 = 1,445.38/x
  3. Step 3: Cross multiply
    2,493.38x = 3,440.80 × 1,445.38
  4. Step 4: Simplify right side
    2,493.38x = 4,973,263.50
  5. Step 5: Solve for x
    x = 4,973,263.50/2,493.38
  6. Step 6: Final answer
    x = 1,994.59

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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.