Home / 5,430.78-7,494.85-3,040.97

Finding the Fourth Proportional to 5,430.78, 7,494.85 and 3,040.97

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Solution

The fourth proportional to 5,430.78, 7,494.85 and 3,040.97 is: 4,196.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,430.78 : 7,494.85 = 3,040.97 : x
  2. Step 2: Convert to fraction form
    5,430.78/7,494.85 = 3,040.97/x
  3. Step 3: Cross multiply
    5,430.78x = 7,494.85 × 3,040.97
  4. Step 4: Simplify right side
    5,430.78x = 22,791,598.80
  5. Step 5: Solve for x
    x = 22,791,598.80/5,430.78
  6. Step 6: Final answer
    x = 4,196.75

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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.