Home / 5,190.09-7,784.88-2,854.65

Finding the Fourth Proportional to 5,190.09, 7,784.88 and 2,854.65

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Solution

The fourth proportional to 5,190.09, 7,784.88 and 2,854.65 is: 4,281.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,190.09 : 7,784.88 = 2,854.65 : x
  2. Step 2: Convert to fraction form
    5,190.09/7,784.88 = 2,854.65/x
  3. Step 3: Cross multiply
    5,190.09x = 7,784.88 × 2,854.65
  4. Step 4: Simplify right side
    5,190.09x = 22,223,126.18
  5. Step 5: Solve for x
    x = 22,223,126.18/5,190.09
  6. Step 6: Final answer
    x = 4,281.84

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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.