Home / 5,171.64-7,138.14-3,307.56

Finding the Fourth Proportional to 5,171.64, 7,138.14 and 3,307.56

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Solution

The fourth proportional to 5,171.64, 7,138.14 and 3,307.56 is: 4,565.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,171.64 : 7,138.14 = 3,307.56 : x
  2. Step 2: Convert to fraction form
    5,171.64/7,138.14 = 3,307.56/x
  3. Step 3: Cross multiply
    5,171.64x = 7,138.14 × 3,307.56
  4. Step 4: Simplify right side
    5,171.64x = 23,609,826.34
  5. Step 5: Solve for x
    x = 23,609,826.34/5,171.64
  6. Step 6: Final answer
    x = 4,565.25

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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.