Home / 5,140.59-7,094.03-2,782.72

Finding the Fourth Proportional to 5,140.59, 7,094.03 and 2,782.72

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Solution

The fourth proportional to 5,140.59, 7,094.03 and 2,782.72 is: 3,840.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,140.59 : 7,094.03 = 2,782.72 : x
  2. Step 2: Convert to fraction form
    5,140.59/7,094.03 = 2,782.72/x
  3. Step 3: Cross multiply
    5,140.59x = 7,094.03 × 2,782.72
  4. Step 4: Simplify right side
    5,140.59x = 19,740,694.12
  5. Step 5: Solve for x
    x = 19,740,694.12/5,140.59
  6. Step 6: Final answer
    x = 3,840.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.