Home / 2,285.25-3,154.92-1,489.29

Finding the Fourth Proportional to 2,285.25, 3,154.92 and 1,489.29

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Solution

The fourth proportional to 2,285.25, 3,154.92 and 1,489.29 is: 2,056.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,285.25 : 3,154.92 = 1,489.29 : x
  2. Step 2: Convert to fraction form
    2,285.25/3,154.92 = 1,489.29/x
  3. Step 3: Cross multiply
    2,285.25x = 3,154.92 × 1,489.29
  4. Step 4: Simplify right side
    2,285.25x = 4,698,590.81
  5. Step 5: Solve for x
    x = 4,698,590.81/2,285.25
  6. Step 6: Final answer
    x = 2,056.05

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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.