Home / 6,421.68-9,628.40-2,722.92

Finding the Fourth Proportional to 6,421.68, 9,628.40 and 2,722.92

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Solution

The fourth proportional to 6,421.68, 9,628.40 and 2,722.92 is: 4,082.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,421.68 : 9,628.40 = 2,722.92 : x
  2. Step 2: Convert to fraction form
    6,421.68/9,628.40 = 2,722.92/x
  3. Step 3: Cross multiply
    6,421.68x = 9,628.40 × 2,722.92
  4. Step 4: Simplify right side
    6,421.68x = 26,217,349.31
  5. Step 5: Solve for x
    x = 26,217,349.31/6,421.68
  6. Step 6: Final answer
    x = 4,082.63

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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.