Home / 5,693.45-7,857.52-3,455.15

Finding the Fourth Proportional to 5,693.45, 7,857.52 and 3,455.15

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Solution

The fourth proportional to 5,693.45, 7,857.52 and 3,455.15 is: 4,768.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,693.45 : 7,857.52 = 3,455.15 : x
  2. Step 2: Convert to fraction form
    5,693.45/7,857.52 = 3,455.15/x
  3. Step 3: Cross multiply
    5,693.45x = 7,857.52 × 3,455.15
  4. Step 4: Simplify right side
    5,693.45x = 27,148,910.23
  5. Step 5: Solve for x
    x = 27,148,910.23/5,693.45
  6. Step 6: Final answer
    x = 4,768.45

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Half scale
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Double scale
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Similar ratio
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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.