Home / 5,218.28-7,827.40-1,322.67

Finding the Fourth Proportional to 5,218.28, 7,827.40 and 1,322.67

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Solution

The fourth proportional to 5,218.28, 7,827.40 and 1,322.67 is: 1,984.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,218.28 : 7,827.40 = 1,322.67 : x
  2. Step 2: Convert to fraction form
    5,218.28/7,827.40 = 1,322.67/x
  3. Step 3: Cross multiply
    5,218.28x = 7,827.40 × 1,322.67
  4. Step 4: Simplify right side
    5,218.28x = 10,353,067.16
  5. Step 5: Solve for x
    x = 10,353,067.16/5,218.28
  6. Step 6: Final answer
    x = 1,984.00

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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.