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Finding the Fourth Proportional to 1,263.86, 1,895.78 and 483.68

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Solution

The fourth proportional to 1,263.86, 1,895.78 and 483.68 is: 725.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,263.86 : 1,895.78 = 483.68 : x
  2. Step 2: Convert to fraction form
    1,263.86/1,895.78 = 483.68/x
  3. Step 3: Cross multiply
    1,263.86x = 1,895.78 × 483.68
  4. Step 4: Simplify right side
    1,263.86x = 916,950.87
  5. Step 5: Solve for x
    x = 916,950.87/1,263.86
  6. Step 6: Final answer
    x = 725.52

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Double scale
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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.