Home / 5,420.20-7,483.36-4,427.86

Finding the Fourth Proportional to 5,420.20, 7,483.36 and 4,427.86

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Solution

The fourth proportional to 5,420.20, 7,483.36 and 4,427.86 is: 6,113.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,420.20 : 7,483.36 = 4,427.86 : x
  2. Step 2: Convert to fraction form
    5,420.20/7,483.36 = 4,427.86/x
  3. Step 3: Cross multiply
    5,420.20x = 7,483.36 × 4,427.86
  4. Step 4: Simplify right side
    5,420.20x = 33,135,270.41
  5. Step 5: Solve for x
    x = 33,135,270.41/5,420.20
  6. Step 6: Final answer
    x = 6,113.29

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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.