Home / 4,253.64-6,380.12-2,689.08

Finding the Fourth Proportional to 4,253.64, 6,380.12 and 2,689.08

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Solution

The fourth proportional to 4,253.64, 6,380.12 and 2,689.08 is: 4,033.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,253.64 : 6,380.12 = 2,689.08 : x
  2. Step 2: Convert to fraction form
    4,253.64/6,380.12 = 2,689.08/x
  3. Step 3: Cross multiply
    4,253.64x = 6,380.12 × 2,689.08
  4. Step 4: Simplify right side
    4,253.64x = 17,156,639.64
  5. Step 5: Solve for x
    x = 17,156,639.64/4,253.64
  6. Step 6: Final answer
    x = 4,033.40

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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.