Home / 5,387.76-7,435.32-3,029.88

Finding the Fourth Proportional to 5,387.76, 7,435.32 and 3,029.88

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Solution

The fourth proportional to 5,387.76, 7,435.32 and 3,029.88 is: 4,181.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,387.76 : 7,435.32 = 3,029.88 : x
  2. Step 2: Convert to fraction form
    5,387.76/7,435.32 = 3,029.88/x
  3. Step 3: Cross multiply
    5,387.76x = 7,435.32 × 3,029.88
  4. Step 4: Simplify right side
    5,387.76x = 22,528,127.36
  5. Step 5: Solve for x
    x = 22,528,127.36/5,387.76
  6. Step 6: Final answer
    x = 4,181.35

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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.