Home / 3,441.60-4,749.48-2,115

Finding the Fourth Proportional to 3,441.60, 4,749.48 and 2,115

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Solution

The fourth proportional to 3,441.60, 4,749.48 and 2,115 is: 2,918.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,441.60 : 4,749.48 = 2,115 : x
  2. Step 2: Convert to fraction form
    3,441.60/4,749.48 = 2,115/x
  3. Step 3: Cross multiply
    3,441.60x = 4,749.48 × 2,115
  4. Step 4: Simplify right side
    3,441.60x = 10,045,150.20
  5. Step 5: Solve for x
    x = 10,045,150.20/3,441.60
  6. Step 6: Final answer
    x = 2,918.74

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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.