Home / 1,264.35-1,895.88-442.38

Finding the Fourth Proportional to 1,264.35, 1,895.88 and 442.38

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Solution

The fourth proportional to 1,264.35, 1,895.88 and 442.38 is: 663.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,264.35 : 1,895.88 = 442.38 : x
  2. Step 2: Convert to fraction form
    1,264.35/1,895.88 = 442.38/x
  3. Step 3: Cross multiply
    1,264.35x = 1,895.88 × 442.38
  4. Step 4: Simplify right side
    1,264.35x = 838,699.39
  5. Step 5: Solve for x
    x = 838,699.39/1,264.35
  6. Step 6: Final answer
    x = 663.34

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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.