Home / 5,663.21-7,815.56-3,540.06

Finding the Fourth Proportional to 5,663.21, 7,815.56 and 3,540.06

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Solution

The fourth proportional to 5,663.21, 7,815.56 and 3,540.06 is: 4,885.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,663.21 : 7,815.56 = 3,540.06 : x
  2. Step 2: Convert to fraction form
    5,663.21/7,815.56 = 3,540.06/x
  3. Step 3: Cross multiply
    5,663.21x = 7,815.56 × 3,540.06
  4. Step 4: Simplify right side
    5,663.21x = 27,667,533.63
  5. Step 5: Solve for x
    x = 27,667,533.63/5,663.21
  6. Step 6: Final answer
    x = 4,885.49

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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.