Home / 5,383.36-7,427.70-3,143.95

Finding the Fourth Proportional to 5,383.36, 7,427.70 and 3,143.95

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Solution

The fourth proportional to 5,383.36, 7,427.70 and 3,143.95 is: 4,337.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,383.36 : 7,427.70 = 3,143.95 : x
  2. Step 2: Convert to fraction form
    5,383.36/7,427.70 = 3,143.95/x
  3. Step 3: Cross multiply
    5,383.36x = 7,427.70 × 3,143.95
  4. Step 4: Simplify right side
    5,383.36x = 23,352,317.42
  5. Step 5: Solve for x
    x = 23,352,317.42/5,383.36
  6. Step 6: Final answer
    x = 4,337.87

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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.