Home / 5,787.08-7,987.14-3,430

Finding the Fourth Proportional to 5,787.08, 7,987.14 and 3,430

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Solution

The fourth proportional to 5,787.08, 7,987.14 and 3,430 is: 4,733.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,787.08 : 7,987.14 = 3,430 : x
  2. Step 2: Convert to fraction form
    5,787.08/7,987.14 = 3,430/x
  3. Step 3: Cross multiply
    5,787.08x = 7,987.14 × 3,430
  4. Step 4: Simplify right side
    5,787.08x = 27,395,890.20
  5. Step 5: Solve for x
    x = 27,395,890.20/5,787.08
  6. Step 6: Final answer
    x = 4,733.97

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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.