Home / 1,587.03-2,380.62-491.37

Finding the Fourth Proportional to 1,587.03, 2,380.62 and 491.37

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Solution

The fourth proportional to 1,587.03, 2,380.62 and 491.37 is: 737.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587.03 : 2,380.62 = 491.37 : x
  2. Step 2: Convert to fraction form
    1,587.03/2,380.62 = 491.37/x
  3. Step 3: Cross multiply
    1,587.03x = 2,380.62 × 491.37
  4. Step 4: Simplify right side
    1,587.03x = 1,169,765.25
  5. Step 5: Solve for x
    x = 1,169,765.25/1,587.03
  6. Step 6: Final answer
    x = 737.08

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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.