Home / 1,458.14-2,186.65-625.12

Finding the Fourth Proportional to 1,458.14, 2,186.65 and 625.12

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Solution

The fourth proportional to 1,458.14, 2,186.65 and 625.12 is: 937.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,458.14 : 2,186.65 = 625.12 : x
  2. Step 2: Convert to fraction form
    1,458.14/2,186.65 = 625.12/x
  3. Step 3: Cross multiply
    1,458.14x = 2,186.65 × 625.12
  4. Step 4: Simplify right side
    1,458.14x = 1,366,910.45
  5. Step 5: Solve for x
    x = 1,366,910.45/1,458.14
  6. Step 6: Final answer
    x = 937.44

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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.