Home / 7,237.11-9,977.94-5,742.45

Finding the Fourth Proportional to 7,237.11, 9,977.94 and 5,742.45

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Solution

The fourth proportional to 7,237.11, 9,977.94 and 5,742.45 is: 7,917.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,237.11 : 9,977.94 = 5,742.45 : x
  2. Step 2: Convert to fraction form
    7,237.11/9,977.94 = 5,742.45/x
  3. Step 3: Cross multiply
    7,237.11x = 9,977.94 × 5,742.45
  4. Step 4: Simplify right side
    7,237.11x = 57,297,821.55
  5. Step 5: Solve for x
    x = 57,297,821.55/7,237.11
  6. Step 6: Final answer
    x = 7,917.22

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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.