Home / 5,316.50-7,975.89-1,619.03

Finding the Fourth Proportional to 5,316.50, 7,975.89 and 1,619.03

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Solution

The fourth proportional to 5,316.50, 7,975.89 and 1,619.03 is: 2,428.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,316.50 : 7,975.89 = 1,619.03 : x
  2. Step 2: Convert to fraction form
    5,316.50/7,975.89 = 1,619.03/x
  3. Step 3: Cross multiply
    5,316.50x = 7,975.89 × 1,619.03
  4. Step 4: Simplify right side
    5,316.50x = 12,913,205.19
  5. Step 5: Solve for x
    x = 12,913,205.19/5,316.50
  6. Step 6: Final answer
    x = 2,428.89

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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.