Home / 5,316.39-7,975.73-1,618.52

Finding the Fourth Proportional to 5,316.39, 7,975.73 and 1,618.52

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Solution

The fourth proportional to 5,316.39, 7,975.73 and 1,618.52 is: 2,428.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,316.39 : 7,975.73 = 1,618.52 : x
  2. Step 2: Convert to fraction form
    5,316.39/7,975.73 = 1,618.52/x
  3. Step 3: Cross multiply
    5,316.39x = 7,975.73 × 1,618.52
  4. Step 4: Simplify right side
    5,316.39x = 12,908,872.60
  5. Step 5: Solve for x
    x = 12,908,872.60/5,316.39
  6. Step 6: Final answer
    x = 2,428.13

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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.