Home / 6,388-9,579.12-2,492.32

Finding the Fourth Proportional to 6,388, 9,579.12 and 2,492.32

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Solution

The fourth proportional to 6,388, 9,579.12 and 2,492.32 is: 3,737.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,388 : 9,579.12 = 2,492.32 : x
  2. Step 2: Convert to fraction form
    6,388/9,579.12 = 2,492.32/x
  3. Step 3: Cross multiply
    6,388x = 9,579.12 × 2,492.32
  4. Step 4: Simplify right side
    6,388x = 23,874,232.36
  5. Step 5: Solve for x
    x = 23,874,232.36/6,388
  6. Step 6: Final answer
    x = 3,737.36

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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.