Home / 5,396.34-7,445.82-3,157.79

Finding the Fourth Proportional to 5,396.34, 7,445.82 and 3,157.79

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Solution

The fourth proportional to 5,396.34, 7,445.82 and 3,157.79 is: 4,357.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,396.34 : 7,445.82 = 3,157.79 : x
  2. Step 2: Convert to fraction form
    5,396.34/7,445.82 = 3,157.79/x
  3. Step 3: Cross multiply
    5,396.34x = 7,445.82 × 3,157.79
  4. Step 4: Simplify right side
    5,396.34x = 23,512,298.71
  5. Step 5: Solve for x
    x = 23,512,298.71/5,396.34
  6. Step 6: Final answer
    x = 4,357.08

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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.