Home / 5,383.15-7,428.08-3,114.88

Finding the Fourth Proportional to 5,383.15, 7,428.08 and 3,114.88

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Solution

The fourth proportional to 5,383.15, 7,428.08 and 3,114.88 is: 4,298.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,383.15 : 7,428.08 = 3,114.88 : x
  2. Step 2: Convert to fraction form
    5,383.15/7,428.08 = 3,114.88/x
  3. Step 3: Cross multiply
    5,383.15x = 7,428.08 × 3,114.88
  4. Step 4: Simplify right side
    5,383.15x = 23,137,604.19
  5. Step 5: Solve for x
    x = 23,137,604.19/5,383.15
  6. Step 6: Final answer
    x = 4,298.15

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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.