Home / 5,430.79-7,494.61-3,072.93

Finding the Fourth Proportional to 5,430.79, 7,494.61 and 3,072.93

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Solution

The fourth proportional to 5,430.79, 7,494.61 and 3,072.93 is: 4,240.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,430.79 : 7,494.61 = 3,072.93 : x
  2. Step 2: Convert to fraction form
    5,430.79/7,494.61 = 3,072.93/x
  3. Step 3: Cross multiply
    5,430.79x = 7,494.61 × 3,072.93
  4. Step 4: Simplify right side
    5,430.79x = 23,030,418.28
  5. Step 5: Solve for x
    x = 23,030,418.28/5,430.79
  6. Step 6: Final answer
    x = 4,240.71

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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.