Home / 5,630.78-8,435.30-3,158.08

Finding the Fourth Proportional to 5,630.78, 8,435.30 and 3,158.08

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Solution

The fourth proportional to 5,630.78, 8,435.30 and 3,158.08 is: 4,731.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,630.78 : 8,435.30 = 3,158.08 : x
  2. Step 2: Convert to fraction form
    5,630.78/8,435.30 = 3,158.08/x
  3. Step 3: Cross multiply
    5,630.78x = 8,435.30 × 3,158.08
  4. Step 4: Simplify right side
    5,630.78x = 26,639,352.22
  5. Step 5: Solve for x
    x = 26,639,352.22/5,630.78
  6. Step 6: Final answer
    x = 4,731.02

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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.