Home / 3,320.64-4,578.69-2,124.03

Finding the Fourth Proportional to 3,320.64, 4,578.69 and 2,124.03

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Solution

The fourth proportional to 3,320.64, 4,578.69 and 2,124.03 is: 2,928.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,320.64 : 4,578.69 = 2,124.03 : x
  2. Step 2: Convert to fraction form
    3,320.64/4,578.69 = 2,124.03/x
  3. Step 3: Cross multiply
    3,320.64x = 4,578.69 × 2,124.03
  4. Step 4: Simplify right side
    3,320.64x = 9,725,274.92
  5. Step 5: Solve for x
    x = 9,725,274.92/3,320.64
  6. Step 6: Final answer
    x = 2,928.74

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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.