Home / 3,651.84-5,037.72-2,159.04

Finding the Fourth Proportional to 3,651.84, 5,037.72 and 2,159.04

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Solution

The fourth proportional to 3,651.84, 5,037.72 and 2,159.04 is: 2,978.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,651.84 : 5,037.72 = 2,159.04 : x
  2. Step 2: Convert to fraction form
    3,651.84/5,037.72 = 2,159.04/x
  3. Step 3: Cross multiply
    3,651.84x = 5,037.72 × 2,159.04
  4. Step 4: Simplify right side
    3,651.84x = 10,876,638.99
  5. Step 5: Solve for x
    x = 10,876,638.99/3,651.84
  6. Step 6: Final answer
    x = 2,978.40

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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.