Home / 5,430.91-7,494.79-3,040.87

Finding the Fourth Proportional to 5,430.91, 7,494.79 and 3,040.87

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Solution

The fourth proportional to 5,430.91, 7,494.79 and 3,040.87 is: 4,196.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,430.91 : 7,494.79 = 3,040.87 : x
  2. Step 2: Convert to fraction form
    5,430.91/7,494.79 = 3,040.87/x
  3. Step 3: Cross multiply
    5,430.91x = 7,494.79 × 3,040.87
  4. Step 4: Simplify right side
    5,430.91x = 22,790,682.07
  5. Step 5: Solve for x
    x = 22,790,682.07/5,430.91
  6. Step 6: Final answer
    x = 4,196.48

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1.5x scale

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.