Home / 1,425.90-2,139.26-592.80

Finding the Fourth Proportional to 1,425.90, 2,139.26 and 592.80

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Solution

The fourth proportional to 1,425.90, 2,139.26 and 592.80 is: 889.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425.90 : 2,139.26 = 592.80 : x
  2. Step 2: Convert to fraction form
    1,425.90/2,139.26 = 592.80/x
  3. Step 3: Cross multiply
    1,425.90x = 2,139.26 × 592.80
  4. Step 4: Simplify right side
    1,425.90x = 1,268,153.33
  5. Step 5: Solve for x
    x = 1,268,153.33/1,425.90
  6. Step 6: Final answer
    x = 889.37

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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.