Home / 5,140.26-7,711.60-1,853.38

Finding the Fourth Proportional to 5,140.26, 7,711.60 and 1,853.38

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Solution

The fourth proportional to 5,140.26, 7,711.60 and 1,853.38 is: 2,780.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,140.26 : 7,711.60 = 1,853.38 : x
  2. Step 2: Convert to fraction form
    5,140.26/7,711.60 = 1,853.38/x
  3. Step 3: Cross multiply
    5,140.26x = 7,711.60 × 1,853.38
  4. Step 4: Simplify right side
    5,140.26x = 14,292,477.38
  5. Step 5: Solve for x
    x = 14,292,477.38/5,140.26
  6. Step 6: Final answer
    x = 2,780.50

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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.