Home / 6,207.69-9,315.63-2,921.72

Finding the Fourth Proportional to 6,207.69, 9,315.63 and 2,921.72

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Solution

The fourth proportional to 6,207.69, 9,315.63 and 2,921.72 is: 4,384.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,207.69 : 9,315.63 = 2,921.72 : x
  2. Step 2: Convert to fraction form
    6,207.69/9,315.63 = 2,921.72/x
  3. Step 3: Cross multiply
    6,207.69x = 9,315.63 × 2,921.72
  4. Step 4: Simplify right side
    6,207.69x = 27,217,676.52
  5. Step 5: Solve for x
    x = 27,217,676.52/6,207.69
  6. Step 6: Final answer
    x = 4,384.51

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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.