Home / 1,114.58-1,538.70-1,040.96

Finding the Fourth Proportional to 1,114.58, 1,538.70 and 1,040.96

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Solution

The fourth proportional to 1,114.58, 1,538.70 and 1,040.96 is: 1,437.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,114.58 : 1,538.70 = 1,040.96 : x
  2. Step 2: Convert to fraction form
    1,114.58/1,538.70 = 1,040.96/x
  3. Step 3: Cross multiply
    1,114.58x = 1,538.70 × 1,040.96
  4. Step 4: Simplify right side
    1,114.58x = 1,601,725.15
  5. Step 5: Solve for x
    x = 1,601,725.15/1,114.58
  6. Step 6: Final answer
    x = 1,437.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.