Home / 5,421.71-8,133.69-3,082.79

Finding the Fourth Proportional to 5,421.71, 8,133.69 and 3,082.79

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Solution

The fourth proportional to 5,421.71, 8,133.69 and 3,082.79 is: 4,624.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421.71 : 8,133.69 = 3,082.79 : x
  2. Step 2: Convert to fraction form
    5,421.71/8,133.69 = 3,082.79/x
  3. Step 3: Cross multiply
    5,421.71x = 8,133.69 × 3,082.79
  4. Step 4: Simplify right side
    5,421.71x = 25,074,417.53
  5. Step 5: Solve for x
    x = 25,074,417.53/5,421.71
  6. Step 6: Final answer
    x = 4,624.82

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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.