Home / 2,281.25-3,147.99-1,535.07

Finding the Fourth Proportional to 2,281.25, 3,147.99 and 1,535.07

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Solution

The fourth proportional to 2,281.25, 3,147.99 and 1,535.07 is: 2,118.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,281.25 : 3,147.99 = 1,535.07 : x
  2. Step 2: Convert to fraction form
    2,281.25/3,147.99 = 1,535.07/x
  3. Step 3: Cross multiply
    2,281.25x = 3,147.99 × 1,535.07
  4. Step 4: Simplify right side
    2,281.25x = 4,832,385.01
  5. Step 5: Solve for x
    x = 4,832,385.01/2,281.25
  6. Step 6: Final answer
    x = 2,118.31

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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.