Home / 5,140.81-7,094.37-2,783

Finding the Fourth Proportional to 5,140.81, 7,094.37 and 2,783

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Solution

The fourth proportional to 5,140.81, 7,094.37 and 2,783 is: 3,840.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,140.81 : 7,094.37 = 2,783 : x
  2. Step 2: Convert to fraction form
    5,140.81/7,094.37 = 2,783/x
  3. Step 3: Cross multiply
    5,140.81x = 7,094.37 × 2,783
  4. Step 4: Simplify right side
    5,140.81x = 19,743,631.71
  5. Step 5: Solve for x
    x = 19,743,631.71/5,140.81
  6. Step 6: Final answer
    x = 3,840.57

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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.