Home / 7,171.24-10,756.54-1,977.32

Finding the Fourth Proportional to 7,171.24, 10,756.54 and 1,977.32

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Solution

The fourth proportional to 7,171.24, 10,756.54 and 1,977.32 is: 2,965.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,171.24 : 10,756.54 = 1,977.32 : x
  2. Step 2: Convert to fraction form
    7,171.24/10,756.54 = 1,977.32/x
  3. Step 3: Cross multiply
    7,171.24x = 10,756.54 × 1,977.32
  4. Step 4: Simplify right side
    7,171.24x = 21,269,121.67
  5. Step 5: Solve for x
    x = 21,269,121.67/7,171.24
  6. Step 6: Final answer
    x = 2,965.89

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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.