Home / 1,962.15-2,960.72-1,886.21

Finding the Fourth Proportional to 1,962.15, 2,960.72 and 1,886.21

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Solution

The fourth proportional to 1,962.15, 2,960.72 and 1,886.21 is: 2,846.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,962.15 : 2,960.72 = 1,886.21 : x
  2. Step 2: Convert to fraction form
    1,962.15/2,960.72 = 1,886.21/x
  3. Step 3: Cross multiply
    1,962.15x = 2,960.72 × 1,886.21
  4. Step 4: Simplify right side
    1,962.15x = 5,584,515.44
  5. Step 5: Solve for x
    x = 5,584,515.44/1,962.15
  6. Step 6: Final answer
    x = 2,846.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.