Home / 4,479.12-6,718.68-2,169

Finding the Fourth Proportional to 4,479.12, 6,718.68 and 2,169

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Solution

The fourth proportional to 4,479.12, 6,718.68 and 2,169 is: 3,253.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,479.12 : 6,718.68 = 2,169 : x
  2. Step 2: Convert to fraction form
    4,479.12/6,718.68 = 2,169/x
  3. Step 3: Cross multiply
    4,479.12x = 6,718.68 × 2,169
  4. Step 4: Simplify right side
    4,479.12x = 14,572,816.92
  5. Step 5: Solve for x
    x = 14,572,816.92/4,479.12
  6. Step 6: Final answer
    x = 3,253.50

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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.