Home / 1,381.27-2,070.24-590.31

Finding the Fourth Proportional to 1,381.27, 2,070.24 and 590.31

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Solution

The fourth proportional to 1,381.27, 2,070.24 and 590.31 is: 884.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,381.27 : 2,070.24 = 590.31 : x
  2. Step 2: Convert to fraction form
    1,381.27/2,070.24 = 590.31/x
  3. Step 3: Cross multiply
    1,381.27x = 2,070.24 × 590.31
  4. Step 4: Simplify right side
    1,381.27x = 1,222,083.37
  5. Step 5: Solve for x
    x = 1,222,083.37/1,381.27
  6. Step 6: Final answer
    x = 884.75

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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.