Home / 6,221.12-9,330.40-2,756.16

Finding the Fourth Proportional to 6,221.12, 9,330.40 and 2,756.16

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Solution

The fourth proportional to 6,221.12, 9,330.40 and 2,756.16 is: 4,133.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,221.12 : 9,330.40 = 2,756.16 : x
  2. Step 2: Convert to fraction form
    6,221.12/9,330.40 = 2,756.16/x
  3. Step 3: Cross multiply
    6,221.12x = 9,330.40 × 2,756.16
  4. Step 4: Simplify right side
    6,221.12x = 25,716,075.26
  5. Step 5: Solve for x
    x = 25,716,075.26/6,221.12
  6. Step 6: Final answer
    x = 4,133.67

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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.