Home / 5,389.84-8,065.28-4,456.72

Finding the Fourth Proportional to 5,389.84, 8,065.28 and 4,456.72

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Solution

The fourth proportional to 5,389.84, 8,065.28 and 4,456.72 is: 6,668.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,389.84 : 8,065.28 = 4,456.72 : x
  2. Step 2: Convert to fraction form
    5,389.84/8,065.28 = 4,456.72/x
  3. Step 3: Cross multiply
    5,389.84x = 8,065.28 × 4,456.72
  4. Step 4: Simplify right side
    5,389.84x = 35,944,694.68
  5. Step 5: Solve for x
    x = 35,944,694.68/5,389.84
  6. Step 6: Final answer
    x = 6,668.97

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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.