Home / 4,618.91-6,929.76-2,155.21

Finding the Fourth Proportional to 4,618.91, 6,929.76 and 2,155.21

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Solution

The fourth proportional to 4,618.91, 6,929.76 and 2,155.21 is: 3,233.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,618.91 : 6,929.76 = 2,155.21 : x
  2. Step 2: Convert to fraction form
    4,618.91/6,929.76 = 2,155.21/x
  3. Step 3: Cross multiply
    4,618.91x = 6,929.76 × 2,155.21
  4. Step 4: Simplify right side
    4,618.91x = 14,935,088.05
  5. Step 5: Solve for x
    x = 14,935,088.05/4,618.91
  6. Step 6: Final answer
    x = 3,233.47

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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.