Home / 2,685.15-3,704.52-1,676.40

Finding the Fourth Proportional to 2,685.15, 3,704.52 and 1,676.40

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Solution

The fourth proportional to 2,685.15, 3,704.52 and 1,676.40 is: 2,312.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,685.15 : 3,704.52 = 1,676.40 : x
  2. Step 2: Convert to fraction form
    2,685.15/3,704.52 = 1,676.40/x
  3. Step 3: Cross multiply
    2,685.15x = 3,704.52 × 1,676.40
  4. Step 4: Simplify right side
    2,685.15x = 6,210,257.33
  5. Step 5: Solve for x
    x = 6,210,257.33/2,685.15
  6. Step 6: Final answer
    x = 2,312.82

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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.