Home / 1,264.15-1,895.61-442.41

Finding the Fourth Proportional to 1,264.15, 1,895.61 and 442.41

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Solution

The fourth proportional to 1,264.15, 1,895.61 and 442.41 is: 663.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,264.15 : 1,895.61 = 442.41 : x
  2. Step 2: Convert to fraction form
    1,264.15/1,895.61 = 442.41/x
  3. Step 3: Cross multiply
    1,264.15x = 1,895.61 × 442.41
  4. Step 4: Simplify right side
    1,264.15x = 838,636.82
  5. Step 5: Solve for x
    x = 838,636.82/1,264.15
  6. Step 6: Final answer
    x = 663.40

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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.