Home / 3,155.71-4,733.64-1,306.96

Finding the Fourth Proportional to 3,155.71, 4,733.64 and 1,306.96

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Solution

The fourth proportional to 3,155.71, 4,733.64 and 1,306.96 is: 1,960.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155.71 : 4,733.64 = 1,306.96 : x
  2. Step 2: Convert to fraction form
    3,155.71/4,733.64 = 1,306.96/x
  3. Step 3: Cross multiply
    3,155.71x = 4,733.64 × 1,306.96
  4. Step 4: Simplify right side
    3,155.71x = 6,186,678.13
  5. Step 5: Solve for x
    x = 6,186,678.13/3,155.71
  6. Step 6: Final answer
    x = 1,960.47

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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.