Home / 2,589.88-3,575.45-1,928.31

Finding the Fourth Proportional to 2,589.88, 3,575.45 and 1,928.31

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Solution

The fourth proportional to 2,589.88, 3,575.45 and 1,928.31 is: 2,662.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,589.88 : 3,575.45 = 1,928.31 : x
  2. Step 2: Convert to fraction form
    2,589.88/3,575.45 = 1,928.31/x
  3. Step 3: Cross multiply
    2,589.88x = 3,575.45 × 1,928.31
  4. Step 4: Simplify right side
    2,589.88x = 6,894,580.81
  5. Step 5: Solve for x
    x = 6,894,580.81/2,589.88
  6. Step 6: Final answer
    x = 2,662.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.