Home / 7,424.64-11,120.75-3,720.41

Finding the Fourth Proportional to 7,424.64, 11,120.75 and 3,720.41

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Solution

The fourth proportional to 7,424.64, 11,120.75 and 3,720.41 is: 5,572.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,424.64 : 11,120.75 = 3,720.41 : x
  2. Step 2: Convert to fraction form
    7,424.64/11,120.75 = 3,720.41/x
  3. Step 3: Cross multiply
    7,424.64x = 11,120.75 × 3,720.41
  4. Step 4: Simplify right side
    7,424.64x = 41,373,749.51
  5. Step 5: Solve for x
    x = 41,373,749.51/7,424.64
  6. Step 6: Final answer
    x = 5,572.49

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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.