Home / 7,420.36-11,108.67-4,949.05

Finding the Fourth Proportional to 7,420.36, 11,108.67 and 4,949.05

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Solution

The fourth proportional to 7,420.36, 11,108.67 and 4,949.05 is: 7,408.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,420.36 : 11,108.67 = 4,949.05 : x
  2. Step 2: Convert to fraction form
    7,420.36/11,108.67 = 4,949.05/x
  3. Step 3: Cross multiply
    7,420.36x = 11,108.67 × 4,949.05
  4. Step 4: Simplify right side
    7,420.36x = 54,977,363.26
  5. Step 5: Solve for x
    x = 54,977,363.26/7,420.36
  6. Step 6: Final answer
    x = 7,408.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.