Home / 1,411.14-2,116.84-436.98

Finding the Fourth Proportional to 1,411.14, 2,116.84 and 436.98

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Solution

The fourth proportional to 1,411.14, 2,116.84 and 436.98 is: 655.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,411.14 : 2,116.84 = 436.98 : x
  2. Step 2: Convert to fraction form
    1,411.14/2,116.84 = 436.98/x
  3. Step 3: Cross multiply
    1,411.14x = 2,116.84 × 436.98
  4. Step 4: Simplify right side
    1,411.14x = 925,016.74
  5. Step 5: Solve for x
    x = 925,016.74/1,411.14
  6. Step 6: Final answer
    x = 655.51

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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.