Home / 3,319-4,979.40-1,010.50

Finding the Fourth Proportional to 3,319, 4,979.40 and 1,010.50

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Solution

The fourth proportional to 3,319, 4,979.40 and 1,010.50 is: 1,516.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,319 : 4,979.40 = 1,010.50 : x
  2. Step 2: Convert to fraction form
    3,319/4,979.40 = 1,010.50/x
  3. Step 3: Cross multiply
    3,319x = 4,979.40 × 1,010.50
  4. Step 4: Simplify right side
    3,319x = 5,031,683.70
  5. Step 5: Solve for x
    x = 5,031,683.70/3,319
  6. Step 6: Final answer
    x = 1,516.02

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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.