Home / 1,263.63-1,895.73-397.89

Finding the Fourth Proportional to 1,263.63, 1,895.73 and 397.89

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Solution

The fourth proportional to 1,263.63, 1,895.73 and 397.89 is: 596.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,263.63 : 1,895.73 = 397.89 : x
  2. Step 2: Convert to fraction form
    1,263.63/1,895.73 = 397.89/x
  3. Step 3: Cross multiply
    1,263.63x = 1,895.73 × 397.89
  4. Step 4: Simplify right side
    1,263.63x = 754,292.01
  5. Step 5: Solve for x
    x = 754,292.01/1,263.63
  6. Step 6: Final answer
    x = 596.92

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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.