Home / 7,408.90-11,113.35-2,214.78

Finding the Fourth Proportional to 7,408.90, 11,113.35 and 2,214.78

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Solution

The fourth proportional to 7,408.90, 11,113.35 and 2,214.78 is: 3,322.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,408.90 : 11,113.35 = 2,214.78 : x
  2. Step 2: Convert to fraction form
    7,408.90/11,113.35 = 2,214.78/x
  3. Step 3: Cross multiply
    7,408.90x = 11,113.35 × 2,214.78
  4. Step 4: Simplify right side
    7,408.90x = 24,613,625.31
  5. Step 5: Solve for x
    x = 24,613,625.31/7,408.90
  6. Step 6: Final answer
    x = 3,322.17

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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.