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Finding the Fourth Proportional to 1,263.52, 1,895.07 and 397.63

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Solution

The fourth proportional to 1,263.52, 1,895.07 and 397.63 is: 596.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,263.52 : 1,895.07 = 397.63 : x
  2. Step 2: Convert to fraction form
    1,263.52/1,895.07 = 397.63/x
  3. Step 3: Cross multiply
    1,263.52x = 1,895.07 × 397.63
  4. Step 4: Simplify right side
    1,263.52x = 753,536.68
  5. Step 5: Solve for x
    x = 753,536.68/1,263.52
  6. Step 6: Final answer
    x = 596.38

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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.