Home / 4,172.12-5,756.50-2,556.57

Finding the Fourth Proportional to 4,172.12, 5,756.50 and 2,556.57

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Solution

The fourth proportional to 4,172.12, 5,756.50 and 2,556.57 is: 3,527.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,172.12 : 5,756.50 = 2,556.57 : x
  2. Step 2: Convert to fraction form
    4,172.12/5,756.50 = 2,556.57/x
  3. Step 3: Cross multiply
    4,172.12x = 5,756.50 × 2,556.57
  4. Step 4: Simplify right side
    4,172.12x = 14,716,895.21
  5. Step 5: Solve for x
    x = 14,716,895.21/4,172.12
  6. Step 6: Final answer
    x = 3,527.44

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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.