Home / 1,113.94-1,671.11-1,106.18

Finding the Fourth Proportional to 1,113.94, 1,671.11 and 1,106.18

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Solution

The fourth proportional to 1,113.94, 1,671.11 and 1,106.18 is: 1,659.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,113.94 : 1,671.11 = 1,106.18 : x
  2. Step 2: Convert to fraction form
    1,113.94/1,671.11 = 1,106.18/x
  3. Step 3: Cross multiply
    1,113.94x = 1,671.11 × 1,106.18
  4. Step 4: Simplify right side
    1,113.94x = 1,848,548.46
  5. Step 5: Solve for x
    x = 1,848,548.46/1,113.94
  6. Step 6: Final answer
    x = 1,659.47

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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.