Home / 7,408.64-11,112.95-3,458.58

Finding the Fourth Proportional to 7,408.64, 11,112.95 and 3,458.58

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Solution

The fourth proportional to 7,408.64, 11,112.95 and 3,458.58 is: 5,187.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,408.64 : 11,112.95 = 3,458.58 : x
  2. Step 2: Convert to fraction form
    7,408.64/11,112.95 = 3,458.58/x
  3. Step 3: Cross multiply
    7,408.64x = 11,112.95 × 3,458.58
  4. Step 4: Simplify right side
    7,408.64x = 38,435,011.64
  5. Step 5: Solve for x
    x = 38,435,011.64/7,408.64
  6. Step 6: Final answer
    x = 5,187.86

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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.