Home / 2,174.04-3,261.06-787.37

Finding the Fourth Proportional to 2,174.04, 3,261.06 and 787.37

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Solution

The fourth proportional to 2,174.04, 3,261.06 and 787.37 is: 1,181.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,174.04 : 3,261.06 = 787.37 : x
  2. Step 2: Convert to fraction form
    2,174.04/3,261.06 = 787.37/x
  3. Step 3: Cross multiply
    2,174.04x = 3,261.06 × 787.37
  4. Step 4: Simplify right side
    2,174.04x = 2,567,644.51
  5. Step 5: Solve for x
    x = 2,567,644.51/2,174.04
  6. Step 6: Final answer
    x = 1,181.05

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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.