Home / 1,263.27-1,895.40-397.65

Finding the Fourth Proportional to 1,263.27, 1,895.40 and 397.65

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Solution

The fourth proportional to 1,263.27, 1,895.40 and 397.65 is: 596.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,263.27 : 1,895.40 = 397.65 : x
  2. Step 2: Convert to fraction form
    1,263.27/1,895.40 = 397.65/x
  3. Step 3: Cross multiply
    1,263.27x = 1,895.40 × 397.65
  4. Step 4: Simplify right side
    1,263.27x = 753,705.81
  5. Step 5: Solve for x
    x = 753,705.81/1,263.27
  6. Step 6: Final answer
    x = 596.63

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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.