Home / 7,420.42-11,130.58-3,037.87

Finding the Fourth Proportional to 7,420.42, 11,130.58 and 3,037.87

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Solution

The fourth proportional to 7,420.42, 11,130.58 and 3,037.87 is: 4,556.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,420.42 : 11,130.58 = 3,037.87 : x
  2. Step 2: Convert to fraction form
    7,420.42/11,130.58 = 3,037.87/x
  3. Step 3: Cross multiply
    7,420.42x = 11,130.58 × 3,037.87
  4. Step 4: Simplify right side
    7,420.42x = 33,813,255.06
  5. Step 5: Solve for x
    x = 33,813,255.06/7,420.42
  6. Step 6: Final answer
    x = 4,556.78

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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.