Home / 3,167.50-4,750.44-1,320.30

Finding the Fourth Proportional to 3,167.50, 4,750.44 and 1,320.30

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Solution

The fourth proportional to 3,167.50, 4,750.44 and 1,320.30 is: 1,980.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,167.50 : 4,750.44 = 1,320.30 : x
  2. Step 2: Convert to fraction form
    3,167.50/4,750.44 = 1,320.30/x
  3. Step 3: Cross multiply
    3,167.50x = 4,750.44 × 1,320.30
  4. Step 4: Simplify right side
    3,167.50x = 6,272,005.93
  5. Step 5: Solve for x
    x = 6,272,005.93/3,167.50
  6. Step 6: Final answer
    x = 1,980.11

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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.