Home / 3,528.52-5,283.42-2,979.40

Finding the Fourth Proportional to 3,528.52, 5,283.42 and 2,979.40

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Solution

The fourth proportional to 3,528.52, 5,283.42 and 2,979.40 is: 4,461.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,528.52 : 5,283.42 = 2,979.40 : x
  2. Step 2: Convert to fraction form
    3,528.52/5,283.42 = 2,979.40/x
  3. Step 3: Cross multiply
    3,528.52x = 5,283.42 × 2,979.40
  4. Step 4: Simplify right side
    3,528.52x = 15,741,421.55
  5. Step 5: Solve for x
    x = 15,741,421.55/3,528.52
  6. Step 6: Final answer
    x = 4,461.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.