Home / 3,528.80-4,872.12-3,154.58

Finding the Fourth Proportional to 3,528.80, 4,872.12 and 3,154.58

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Solution

The fourth proportional to 3,528.80, 4,872.12 and 3,154.58 is: 4,355.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,528.80 : 4,872.12 = 3,154.58 : x
  2. Step 2: Convert to fraction form
    3,528.80/4,872.12 = 3,154.58/x
  3. Step 3: Cross multiply
    3,528.80x = 4,872.12 × 3,154.58
  4. Step 4: Simplify right side
    3,528.80x = 15,369,492.31
  5. Step 5: Solve for x
    x = 15,369,492.31/3,528.80
  6. Step 6: Final answer
    x = 4,355.44

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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.