Home / 7,477.10-11,222.57-3,781.92

Finding the Fourth Proportional to 7,477.10, 11,222.57 and 3,781.92

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Solution

The fourth proportional to 7,477.10, 11,222.57 and 3,781.92 is: 5,676.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,477.10 : 11,222.57 = 3,781.92 : x
  2. Step 2: Convert to fraction form
    7,477.10/11,222.57 = 3,781.92/x
  3. Step 3: Cross multiply
    7,477.10x = 11,222.57 × 3,781.92
  4. Step 4: Simplify right side
    7,477.10x = 42,442,871.39
  5. Step 5: Solve for x
    x = 42,442,871.39/7,477.10
  6. Step 6: Final answer
    x = 5,676.39

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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.