Home / 3,651.64-5,038.05-2,079.40

Finding the Fourth Proportional to 3,651.64, 5,038.05 and 2,079.40

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Solution

The fourth proportional to 3,651.64, 5,038.05 and 2,079.40 is: 2,868.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,651.64 : 5,038.05 = 2,079.40 : x
  2. Step 2: Convert to fraction form
    3,651.64/5,038.05 = 2,079.40/x
  3. Step 3: Cross multiply
    3,651.64x = 5,038.05 × 2,079.40
  4. Step 4: Simplify right side
    3,651.64x = 10,476,121.17
  5. Step 5: Solve for x
    x = 10,476,121.17/3,651.64
  6. Step 6: Final answer
    x = 2,868.88

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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.