Home / 1,935.24-2,902.56-636.72

Finding the Fourth Proportional to 1,935.24, 2,902.56 and 636.72

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Solution

The fourth proportional to 1,935.24, 2,902.56 and 636.72 is: 954.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,935.24 : 2,902.56 = 636.72 : x
  2. Step 2: Convert to fraction form
    1,935.24/2,902.56 = 636.72/x
  3. Step 3: Cross multiply
    1,935.24x = 2,902.56 × 636.72
  4. Step 4: Simplify right side
    1,935.24x = 1,848,118.00
  5. Step 5: Solve for x
    x = 1,848,118.00/1,935.24
  6. Step 6: Final answer
    x = 954.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.