Home / 2,918.61-4,380.54-1,458.57

Finding the Fourth Proportional to 2,918.61, 4,380.54 and 1,458.57

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Solution

The fourth proportional to 2,918.61, 4,380.54 and 1,458.57 is: 2,189.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918.61 : 4,380.54 = 1,458.57 : x
  2. Step 2: Convert to fraction form
    2,918.61/4,380.54 = 1,458.57/x
  3. Step 3: Cross multiply
    2,918.61x = 4,380.54 × 1,458.57
  4. Step 4: Simplify right side
    2,918.61x = 6,389,324.23
  5. Step 5: Solve for x
    x = 6,389,324.23/2,918.61
  6. Step 6: Final answer
    x = 2,189.17

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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.