Home / 1,458.18-2,186.75-580.89

Finding the Fourth Proportional to 1,458.18, 2,186.75 and 580.89

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Solution

The fourth proportional to 1,458.18, 2,186.75 and 580.89 is: 871.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,458.18 : 2,186.75 = 580.89 : x
  2. Step 2: Convert to fraction form
    1,458.18/2,186.75 = 580.89/x
  3. Step 3: Cross multiply
    1,458.18x = 2,186.75 × 580.89
  4. Step 4: Simplify right side
    1,458.18x = 1,270,258.30
  5. Step 5: Solve for x
    x = 1,270,258.30/1,458.18
  6. Step 6: Final answer
    x = 871.13

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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.