Home / 5,639.76-8,455.08-2,355.32

Finding the Fourth Proportional to 5,639.76, 8,455.08 and 2,355.32

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Solution

The fourth proportional to 5,639.76, 8,455.08 and 2,355.32 is: 3,531.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,639.76 : 8,455.08 = 2,355.32 : x
  2. Step 2: Convert to fraction form
    5,639.76/8,455.08 = 2,355.32/x
  3. Step 3: Cross multiply
    5,639.76x = 8,455.08 × 2,355.32
  4. Step 4: Simplify right side
    5,639.76x = 19,914,376.75
  5. Step 5: Solve for x
    x = 19,914,376.75/5,639.76
  6. Step 6: Final answer
    x = 3,531.07

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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.