Home / 3,529.84-4,864.08-2,639.20

Finding the Fourth Proportional to 3,529.84, 4,864.08 and 2,639.20

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Solution

The fourth proportional to 3,529.84, 4,864.08 and 2,639.20 is: 3,636.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,529.84 : 4,864.08 = 2,639.20 : x
  2. Step 2: Convert to fraction form
    3,529.84/4,864.08 = 2,639.20/x
  3. Step 3: Cross multiply
    3,529.84x = 4,864.08 × 2,639.20
  4. Step 4: Simplify right side
    3,529.84x = 12,837,279.94
  5. Step 5: Solve for x
    x = 12,837,279.94/3,529.84
  6. Step 6: Final answer
    x = 3,636.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.