Home / 1,444.44-2,161.25-857.30

Finding the Fourth Proportional to 1,444.44, 2,161.25 and 857.30

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Solution

The fourth proportional to 1,444.44, 2,161.25 and 857.30 is: 1,282.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,444.44 : 2,161.25 = 857.30 : x
  2. Step 2: Convert to fraction form
    1,444.44/2,161.25 = 857.30/x
  3. Step 3: Cross multiply
    1,444.44x = 2,161.25 × 857.30
  4. Step 4: Simplify right side
    1,444.44x = 1,852,827.75
  5. Step 5: Solve for x
    x = 1,852,827.75/1,444.44
  6. Step 6: Final answer
    x = 1,282.73

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1.5x scale

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.