Home / 3,520.68-4,859.28-2,124.24

Finding the Fourth Proportional to 3,520.68, 4,859.28 and 2,124.24

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Solution

The fourth proportional to 3,520.68, 4,859.28 and 2,124.24 is: 2,931.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,520.68 : 4,859.28 = 2,124.24 : x
  2. Step 2: Convert to fraction form
    3,520.68/4,859.28 = 2,124.24/x
  3. Step 3: Cross multiply
    3,520.68x = 4,859.28 × 2,124.24
  4. Step 4: Simplify right side
    3,520.68x = 10,322,276.95
  5. Step 5: Solve for x
    x = 10,322,276.95/3,520.68
  6. Step 6: Final answer
    x = 2,931.90

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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.