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Finding the Fourth Proportional to 3,157.78, 4,357.54 and 1,741.41

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Solution

The fourth proportional to 3,157.78, 4,357.54 and 1,741.41 is: 2,403.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,157.78 : 4,357.54 = 1,741.41 : x
  2. Step 2: Convert to fraction form
    3,157.78/4,357.54 = 1,741.41/x
  3. Step 3: Cross multiply
    3,157.78x = 4,357.54 × 1,741.41
  4. Step 4: Simplify right side
    3,157.78x = 7,588,263.73
  5. Step 5: Solve for x
    x = 7,588,263.73/3,157.78
  6. Step 6: Final answer
    x = 2,403.04

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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.