Home / 5,316.89-7,975.33-2,391.77

Finding the Fourth Proportional to 5,316.89, 7,975.33 and 2,391.77

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Solution

The fourth proportional to 5,316.89, 7,975.33 and 2,391.77 is: 3,587.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,316.89 : 7,975.33 = 2,391.77 : x
  2. Step 2: Convert to fraction form
    5,316.89/7,975.33 = 2,391.77/x
  3. Step 3: Cross multiply
    5,316.89x = 7,975.33 × 2,391.77
  4. Step 4: Simplify right side
    5,316.89x = 19,075,155.03
  5. Step 5: Solve for x
    x = 19,075,155.03/5,316.89
  6. Step 6: Final answer
    x = 3,587.65

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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.